25791761136 has 40 divisors (see below), whose sum is σ = 66687872080. Its totient is φ = 8589620736.

The previous prime is 25791761027. The next prime is 25791761161. The reversal of 25791761136 is 63116719752.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 183775 + ... + 292158.

It is an arithmetic number, because the mean of its divisors is an integer number (1667196802).

Almost surely, 2^25791761136 is an apocalyptic number.

It is an amenable number.

25791761136 is an abundant number, since it is smaller than the sum of its proper divisors (40896110944).

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

25791761136 is a wasteful number, since it uses less digits than its factorization.

25791761136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477073 (or 477067 counting only the distinct ones).

The product of its digits is 476280, while the sum is 48.

The spelling of 25791761136 in words is "twenty-five billion, seven hundred ninety-one million, seven hundred sixty-one thousand, one hundred thirty-six".