309494069677 has 16 divisors (see below), whose sum is σ = 359011795968. Its totient is φ = 264450637440.

The previous prime is 309494069669. The next prime is 309494069711. The reversal of 309494069677 is 776960494903.

It is a cyclic number.

It is not a de Polignac number, because 309494069677 - 2³ = 309494069669 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 (309494069657) 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, 16685848 + ... + 16704385.

It is an arithmetic number, because the mean of its divisors is an integer number (22438237248).

Almost surely, 2^309494069677 is an apocalyptic number.

It is an amenable number.

309494069677 is a deficient number, since it is larger than the sum of its proper divisors (49517726291).

309494069677 is a wasteful number, since it uses less digits than its factorization.

309494069677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33390300.

The product of its (nonzero) digits is 61725888, while the sum is 64.

The spelling of 309494069677 in words is "three hundred nine billion, four hundred ninety-four million, sixty-nine thousand, six hundred seventy-seven".