25791706830 has 16 divisors (see below), whose sum is σ = 61900096464. Its totient is φ = 6877788480.

The previous prime is 25791706817. The next prime is 25791706873. The reversal of 25791706830 is 3860719752.

It is a self number, because there is not a number n which added to its sum of digits gives 25791706830.

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, 429861751 + ... + 429861810.

It is an arithmetic number, because the mean of its divisors is an integer number (3868756029).

Almost surely, 2^25791706830 is an apocalyptic number.

25791706830 is an abundant number, since it is smaller than the sum of its proper divisors (36108389634).

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

25791706830 is a wasteful number, since it uses less digits than its factorization.

25791706830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859723571.

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 25791706830 in words is "twenty-five billion, seven hundred ninety-one million, seven hundred six thousand, eight hundred thirty".