25399648364 has 12 divisors (see below), whose sum is σ = 44451388800. Its totient is φ = 12699251568.

The previous prime is 25399648363. The next prime is 25399648399. The reversal of 25399648364 is 46384699352.

It is not an unprimeable number, because it can be changed into a prime (25399648363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34124 + ... + 227955.

It is an arithmetic number, because the mean of its divisors is an integer number (3704282400).

Almost surely, 2^25399648364 is an apocalyptic number.

It is an amenable number.

25399648364 is a deficient number, since it is larger than the sum of its proper divisors (19051740436).

25399648364 is a wasteful number, since it uses less digits than its factorization.

25399648364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286312 (or 286310 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 59.

The spelling of 25399648364 in words is "twenty-five billion, three hundred ninety-nine million, six hundred forty-eight thousand, three hundred sixty-four".