12917880964 has 6 divisors (see below), whose sum is σ = 22606291694. Its totient is φ = 6458940480.

The previous prime is 12917880961. The next prime is 12917880973. The reversal of 12917880964 is 46908871921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11269520964 + 1648360000 = 106158^2 + 40600^2 .

It is not an unprimeable number, because it can be changed into a prime (12917880961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614735117 + ... + 1614735124.

Almost surely, 2^12917880964 is an apocalyptic number.

It is an amenable number.

12917880964 is a deficient number, since it is larger than the sum of its proper divisors (9688410730).

12917880964 is a wasteful number, since it uses less digits than its factorization.

12917880964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229470245 (or 3229470243 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 12917880964 in words is "twelve billion, nine hundred seventeen million, eight hundred eighty thousand, nine hundred sixty-four".