25708660044 has 24 divisors (see below), whose sum is σ = 62594999040. Its totient is φ = 8196963984.

The previous prime is 25708660001. The next prime is 25708660069. The reversal of 25708660044 is 44006680752.

It is a junction number, because it is equal to n+sod(n) for n = 25708659978 and 25708660005.

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, 46573384 + ... + 46573935.

It is an arithmetic number, because the mean of its divisors is an integer number (2608124960).

Almost surely, 2^25708660044 is an apocalyptic number.

It is an amenable number.

25708660044 is an abundant number, since it is smaller than the sum of its proper divisors (36886338996).

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

25708660044 is a wasteful number, since it uses less digits than its factorization.

25708660044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93147349 (or 93147347 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 25708660044 in words is "twenty-five billion, seven hundred eight million, six hundred sixty thousand, forty-four".