26597135404 has 24 divisors (see below), whose sum is σ = 53233090848. Its totient is φ = 11390453760.

The previous prime is 26597135377. The next prime is 26597135417. The reversal of 26597135404 is 40453179562.

It is a happy number.

It is a super-2 number, since 2×26597135404² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307477 + ... + 384364.

It is an arithmetic number, because the mean of its divisors is an integer number (2218045452).

Almost surely, 2^26597135404 is an apocalyptic number.

It is an amenable number.

26597135404 is an abundant number, since it is smaller than the sum of its proper divisors (26635955444).

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

26597135404 is a wasteful number, since it uses less digits than its factorization.

26597135404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693225 (or 693223 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 26597135404 in words is "twenty-six billion, five hundred ninety-seven million, one hundred thirty-five thousand, four hundred four".