12157813708 has 24 divisors (see below), whose sum is σ = 23369713920. Its totient is φ = 5508573840.

The previous prime is 12157813699. The next prime is 12157813711. The reversal of 12157813708 is 80731875121.

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, 3475888 + ... + 3479383.

It is an arithmetic number, because the mean of its divisors is an integer number (973738080).

Almost surely, 2^12157813708 is an apocalyptic number.

It is an amenable number.

12157813708 is a deficient number, since it is larger than the sum of its proper divisors (11211900212).

12157813708 is a wasteful number, since it uses less digits than its factorization.

12157813708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955317 (or 6955315 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 43.

The spelling of 12157813708 in words is "twelve billion, one hundred fifty-seven million, eight hundred thirteen thousand, seven hundred eight".