26531522873856 has 2560 divisors, whose sum is σ = 109929604055040. Its totient is φ = 6094990540800.

The previous prime is 26531522873837. The next prime is 26531522873857. The reversal of 26531522873856 is 65837822513562.

26531522873856 is a `hidden beast` number, since 2 + 6 + 5 + 31 + 522 + 8 + 73 + 8 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 26531522873793 and 26531522873802.

It is not an unprimeable number, because it can be changed into a prime (26531522873857) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 54479512845 + ... + 54479513331.

It is an arithmetic number, because the mean of its divisors is an integer number (42941251584).

Almost surely, 2^{26531522873856} is an apocalyptic number.

26531522873856 is a gapful number since it is divisible by the number (26) 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 26531522873856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54964802027520).

26531522873856 is an abundant number, since it is smaller than the sum of its proper divisors (83398081181184).

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

26531522873856 is a wasteful number, since it uses less digits than its factorization.

26531522873856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 681 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 63.

The spelling of 26531522873856 in words is "twenty-six trillion, five hundred thirty-one billion, five hundred twenty-two million, eight hundred seventy-three thousand, eight hundred fifty-six".