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26472839926680 = 23345721731397797
BaseRepresentation
bin1100000010011101100000…
…01110000101001110011000
310110201210000201202002110000
412001032300032011032120
511432212334010123210
6132145242121453000
75401412436423300
oct601166016051630
9113653021662400
1026472839926680
118487082aa18a4
122b76744641160
1311a04bb895aa4
14677414080600
1530d9452ecac0
hex1813b0385398

26472839926680 has 1920 divisors, whose sum is σ = 113556286609920. Its totient is φ = 5490507939840.

The previous prime is 26472839926667. The next prime is 26472839926703. The reversal of 26472839926680 is 8662993827462.

26472839926680 is a `hidden beast` number, since 2 + 6 + 4 + 7 + 283 + 9 + 9 + 266 + 80 = 666.

It is a super-2 number, since 2×264728399266802 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 26472839926599 and 26472839926608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 33215608042 + ... + 33215608838.

It is an arithmetic number, because the mean of its divisors is an integer number (59143899276).

Almost surely, 226472839926680 is an apocalyptic number.

26472839926680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26472839926680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56778143304960).

26472839926680 is an abundant number, since it is smaller than the sum of its proper divisors (87083446683240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26472839926680 is a wasteful number, since it uses less digits than its factorization.

26472839926680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 752467968, while the sum is 72.

The spelling of 26472839926680 in words is "twenty-six trillion, four hundred seventy-two billion, eight hundred thirty-nine million, nine hundred twenty-six thousand, six hundred eighty".