309683346064 has 15 divisors (see below), whose sum is σ = 600015795843. Its totient is φ = 154840560048.

The previous prime is 309683346029. The next prime is 309683346109. The reversal of 309683346064 is 460643386903.

The square root of 309683346064 is 556492.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2156407 + ... + 2295529.

Almost surely, 2^309683346064 is an apocalyptic number.

309683346064 is the 556492-nd square number.

It is an amenable number.

309683346064 is a deficient number, since it is larger than the sum of its proper divisors (290332449779).

309683346064 is an frugal number, since it uses more digits than its factorization.

309683346064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278254 (or 139125 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 52.

The spelling of 309683346064 in words is "three hundred nine billion, six hundred eighty-three million, three hundred forty-six thousand, sixty-four".