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26664210048 = 2737217312689
BaseRepresentation
bin11000110101010011…
…111000111010000000
32112211021102012211010
4120311103320322000
5414102014210143
620125510320520
71632523021500
oct306523707200
975737365733
1026664210048
1110343284733
125201959140
13268c2615a8
14140d3d3a00
15a60d56a33
hex6354f8e80

26664210048 has 384 divisors, whose sum is σ = 90084441600. Its totient is φ = 6936330240.

The previous prime is 26664210047. The next prime is 26664210061. The reversal of 26664210048 is 84001246662.

It is a tau number, because it is divible by the number of its divisors (384).

It is a junction number, because it is equal to n+sod(n) for n = 26664209988 and 26664210015.

It is not an unprimeable number, because it can be changed into a prime (26664210043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9914688 + ... + 9917376.

It is an arithmetic number, because the mean of its divisors is an integer number (234594900).

Almost surely, 226664210048 is an apocalyptic number.

26664210048 is a gapful number since it is divisible by the number (28) 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 26664210048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45042220800).

26664210048 is an abundant number, since it is smaller than the sum of its proper divisors (63420231552).

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

26664210048 is a wasteful number, since it uses less digits than its factorization.

26664210048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768 (or 2749 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 26664210048 in words is "twenty-six billion, six hundred sixty-four million, two hundred ten thousand, forty-eight".