306979037188 has 6 divisors (see below), whose sum is σ = 537213315086. Its totient is φ = 153489518592.

The previous prime is 306979037159. The next prime is 306979037201. The reversal of 306979037188 is 881730979603.

It can be written as a sum of positive squares in only one way, i.e., 178529910784 + 128449126404 = 422528^2 + 358398^2 .

It is a super-2 number, since 2×306979037188² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38372379645 + ... + 38372379652.

Almost surely, 2^306979037188 is an apocalyptic number.

It is an amenable number.

306979037188 is a deficient number, since it is larger than the sum of its proper divisors (230234277898).

306979037188 is a wasteful number, since it uses less digits than its factorization.

306979037188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76744759301 (or 76744759299 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 306979037188 in words is "three hundred six billion, nine hundred seventy-nine million, thirty-seven thousand, one hundred eighty-eight".