12125989688 has 8 divisors (see below), whose sum is σ = 22736230680. Its totient is φ = 6062994840.

The previous prime is 12125989657. The next prime is 12125989693. The reversal of 12125989688 is 88698952121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757874348 + ... + 757874363.

It is an arithmetic number, because the mean of its divisors is an integer number (2842028835).

Almost surely, 2^12125989688 is an apocalyptic number.

It is an amenable number.

12125989688 is a deficient number, since it is larger than the sum of its proper divisors (10610240992).

12125989688 is a wasteful number, since it uses less digits than its factorization.

12125989688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515748717 (or 1515748713 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 59.

The spelling of 12125989688 in words is "twelve billion, one hundred twenty-five million, nine hundred eighty-nine thousand, six hundred eighty-eight".