25798313788 has 24 divisors (see below), whose sum is σ = 49933954112. Its totient is φ = 11585104704.

The previous prime is 25798313777. The next prime is 25798313813. The reversal of 25798313788 is 88731389752.

It is a super-2 number, since 2×25798313788² (a number of 22 digits) contains 22 as substring.

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, 6702420 + ... + 6706267.

Almost surely, 2^25798313788 is an apocalyptic number.

It is an amenable number.

25798313788 is a deficient number, since it is larger than the sum of its proper divisors (24135640324).

25798313788 is a wasteful number, since it uses less digits than its factorization.

25798313788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13408741 (or 13408739 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 61.

The spelling of 25798313788 in words is "twenty-five billion, seven hundred ninety-eight million, three hundred thirteen thousand, seven hundred eighty-eight".