309393976118 has 16 divisors (see below), whose sum is σ = 491416184880. Its totient is φ = 145589534976.

The previous prime is 309393976117. The next prime is 309393976153. The reversal of 309393976118 is 811679393903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309393976117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448553 + ... + 905531.

It is an arithmetic number, because the mean of its divisors is an integer number (30713511555).

Almost surely, 2^309393976118 is an apocalyptic number.

309393976118 is a deficient number, since it is larger than the sum of its proper divisors (182022208762).

309393976118 is a wasteful number, since it uses less digits than its factorization.

309393976118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476911.

The product of its (nonzero) digits is 6613488, while the sum is 59.

The spelling of 309393976118 in words is "three hundred nine billion, three hundred ninety-three million, nine hundred seventy-six thousand, one hundred eighteen".