12508239688 has 32 divisors (see below), whose sum is σ = 26809660800. Its totient is φ = 5359416192.

The previous prime is 12508239671. The next prime is 12508239739. The reversal of 12508239688 is 88693280521.

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, 238156 + ... + 285892.

It is an arithmetic number, because the mean of its divisors is an integer number (837801900).

Almost surely, 2^12508239688 is an apocalyptic number.

It is an amenable number.

12508239688 is an abundant number, since it is smaller than the sum of its proper divisors (14301421112).

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

12508239688 is a wasteful number, since it uses less digits than its factorization.

12508239688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52429 (or 52425 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 12508239688 in words is "twelve billion, five hundred eight million, two hundred thirty-nine thousand, six hundred eighty-eight".