11976707872 has 24 divisors (see below), whose sum is σ = 23587465356. Its totient is φ = 5986240512.

The previous prime is 11976707861. The next prime is 11976707929. The reversal of 11976707872 is 27870767911.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11245329936 + 731377936 = 106044^2 + 27044^2 .

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, 28108 + ... + 157300.

Almost surely, 2^11976707872 is an apocalyptic number.

It is an amenable number.

11976707872 is a deficient number, since it is larger than the sum of its proper divisors (11610757484).

11976707872 is a wasteful number, since it uses less digits than its factorization.

11976707872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132100 (or 132092 counting only the distinct ones).

The product of its (nonzero) digits is 2074464, while the sum is 55.

The spelling of 11976707872 in words is "eleven billion, nine hundred seventy-six million, seven hundred seven thousand, eight hundred seventy-two".