25397379704 has 32 divisors (see below), whose sum is σ = 50430114000. Its totient is φ = 11949611520.

The previous prime is 25397379697. The next prime is 25397379779. The reversal of 25397379704 is 40797379352.

It is a super-2 number, since 2×25397379704² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25397379704.

It is a congruent number.

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, 986759 + ... + 1012169.

Almost surely, 2^25397379704 is an apocalyptic number.

It is an amenable number.

25397379704 is a deficient number, since it is larger than the sum of its proper divisors (25032734296).

25397379704 is a wasteful number, since it uses less digits than its factorization.

25397379704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32783 (or 32779 counting only the distinct ones).

The product of its (nonzero) digits is 10001880, while the sum is 56.

The spelling of 25397379704 in words is "twenty-five billion, three hundred ninety-seven million, three hundred seventy-nine thousand, seven hundred four".