26401569400 has 48 divisors (see below), whose sum is σ = 61486064640. Its totient is φ = 10543008000.

The previous prime is 26401569367. The next prime is 26401569413. The reversal of 26401569400 is 496510462.

It is a self number, because there is not a number n which added to its sum of digits gives 26401569400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10377 + ... + 230023.

It is an arithmetic number, because the mean of its divisors is an integer number (1280959680).

Almost surely, 2^26401569400 is an apocalyptic number.

26401569400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26401569400 is an abundant number, since it is smaller than the sum of its proper divisors (35084495240).

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

26401569400 is a wasteful number, since it uses less digits than its factorization.

26401569400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220264 (or 220255 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 26401569400 in words is "twenty-six billion, four hundred one million, five hundred sixty-nine thousand, four hundred".