25785040296 has 32 divisors (see below), whose sum is σ = 67855370400. Its totient is φ = 8142644160.

The previous prime is 25785040289. The next prime is 25785040357. The reversal of 25785040296 is 69204058752.

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, 28272615 + ... + 28273526.

It is an arithmetic number, because the mean of its divisors is an integer number (2120480325).

Almost surely, 2^25785040296 is an apocalyptic number.

It is an amenable number.

25785040296 is an abundant number, since it is smaller than the sum of its proper divisors (42070330104).

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

25785040296 is a wasteful number, since it uses less digits than its factorization.

25785040296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56546169 (or 56546165 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 25785040296 in words is "twenty-five billion, seven hundred eighty-five million, forty thousand, two hundred ninety-six".