126979225864 has 16 divisors (see below), whose sum is σ = 238213191420. Its totient is φ = 63455708160.

The previous prime is 126979225817. The next prime is 126979225873. The reversal of 126979225864 is 468522979621.

It can be written as a sum of positive squares in 2 ways, for example, as 126267936964 + 711288900 = 355342^2 + 26670^2 .

It is a super-2 number, since 2×126979225864² (a number of 23 digits) contains 22 as substring.

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, 4222177 + ... + 4252144.

Almost surely, 2^126979225864 is an apocalyptic number.

It is an amenable number.

126979225864 is a deficient number, since it is larger than the sum of its proper divisors (111233965556).

126979225864 is a wasteful number, since it uses less digits than its factorization.

126979225864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476200 (or 8476196 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 61.

The spelling of 126979225864 in words is "one hundred twenty-six billion, nine hundred seventy-nine million, two hundred twenty-five thousand, eight hundred sixty-four".