26357400972 has 120 divisors (see below), whose sum is σ = 78795230976. Its totient is φ = 7526056032.

The previous prime is 26357400961. The next prime is 26357401019. The reversal of 26357400972 is 27900475362.

26357400972 is a `hidden beast` number, since 2 + 6 + 3 + 574 + 0 + 0 + 9 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5674483 + ... + 5679125.

Almost surely, 2^26357400972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26357400972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39397615488).

26357400972 is an abundant number, since it is smaller than the sum of its proper divisors (52437830004).

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

26357400972 is a wasteful number, since it uses less digits than its factorization.

26357400972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7169 (or 7158 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 26357400972 in words is "twenty-six billion, three hundred fifty-seven million, four hundred thousand, nine hundred seventy-two".