309384879496 has 64 divisors (see below), whose sum is σ = 727844215680. Its totient is φ = 119771758080.

The previous prime is 309384879491. The next prime is 309384879499. The reversal of 309384879496 is 694978483903.

It is not an unprimeable number, because it can be changed into a prime (309384879491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1502805 + ... + 1696228.

It is an arithmetic number, because the mean of its divisors is an integer number (11372565870).

Almost surely, 2^309384879496 is an apocalyptic number.

It is an amenable number.

309384879496 is an abundant number, since it is smaller than the sum of its proper divisors (418459336184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

309384879496 is a wasteful number, since it uses less digits than its factorization.

309384879496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199214 (or 3199210 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 70.

The spelling of 309384879496 in words is "three hundred nine billion, three hundred eighty-four million, eight hundred seventy-nine thousand, four hundred ninety-six".