309907461613 has 16 divisors (see below), whose sum is σ = 318337899264. Its totient is φ = 301558593600.

The previous prime is 309907461587. The next prime is 309907461659. The reversal of 309907461613 is 316164709903.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-309907461613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309907461013) 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, 5701263 + ... + 5755363.

It is an arithmetic number, because the mean of its divisors is an integer number (19896118704).

Almost surely, 2^309907461613 is an apocalyptic number.

It is an amenable number.

309907461613 is a deficient number, since it is larger than the sum of its proper divisors (8430437651).

309907461613 is a wasteful number, since it uses less digits than its factorization.

309907461613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54852.

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 309907461613 in words is "three hundred nine billion, nine hundred seven million, four hundred sixty-one thousand, six hundred thirteen".