25512868912 has 10 divisors (see below), whose sum is σ = 49431183548. Its totient is φ = 12756434448.

The previous prime is 25512868903. The next prime is 25512868939. The reversal of 25512868912 is 21986821552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 797277138 + ... + 797277169.

Almost surely, 2^25512868912 is an apocalyptic number.

It is an amenable number.

25512868912 is a deficient number, since it is larger than the sum of its proper divisors (23918314636).

25512868912 is a wasteful number, since it uses less digits than its factorization.

25512868912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594554315 (or 1594554309 counting only the distinct ones).

The product of its digits is 691200, while the sum is 49.

The spelling of 25512868912 in words is "twenty-five billion, five hundred twelve million, eight hundred sixty-eight thousand, nine hundred twelve".