309999345804 has 48 divisors (see below), whose sum is σ = 805114648800. Its totient is φ = 103151490048.

The previous prime is 309999345797. The next prime is 309999345827. The reversal of 309999345804 is 408543999903.

309999345804 is a `hidden beast` number, since 3 + 0 + 9 + 99 + 93 + 458 + 0 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2460837 + ... + 2583740.

It is an arithmetic number, because the mean of its divisors is an integer number (16773221850).

Almost surely, 2^309999345804 is an apocalyptic number.

It is an amenable number.

309999345804 is an abundant number, since it is smaller than the sum of its proper divisors (495115302996).

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

309999345804 is a wasteful number, since it uses less digits than its factorization.

309999345804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045159 (or 5045151 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 63.

The spelling of 309999345804 in words is "three hundred nine billion, nine hundred ninety-nine million, three hundred forty-five thousand, eight hundred four".