25802875964 has 12 divisors (see below), whose sum is σ = 45158142288. Its totient is φ = 12900549600.

The previous prime is 25802875921. The next prime is 25802875991. The reversal of 25802875964 is 46957820852.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154457 + ... + 274704.

It is an arithmetic number, because the mean of its divisors is an integer number (3763178524).

Almost surely, 2^25802875964 is an apocalyptic number.

It is an amenable number.

25802875964 is a deficient number, since it is larger than the sum of its proper divisors (19355266324).

25802875964 is a wasteful number, since it uses less digits than its factorization.

25802875964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444196 (or 444194 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 25802875964 in words is "twenty-five billion, eight hundred two million, eight hundred seventy-five thousand, nine hundred sixty-four".