309338716458 has 16 divisors (see below), whose sum is σ = 620146980576. Its totient is φ = 102867980880.

The previous prime is 309338716447. The next prime is 309338716459. The reversal of 309338716458 is 854617833903.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 309338716398 and 309338716407.

It is not an unprimeable number, because it can be changed into a prime (309338716459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61228416 + ... + 61233467.

It is an arithmetic number, because the mean of its divisors is an integer number (38759186286).

Almost surely, 2^309338716458 is an apocalyptic number.

309338716458 is an abundant number, since it is smaller than the sum of its proper divisors (310808264118).

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

309338716458 is a wasteful number, since it uses less digits than its factorization.

309338716458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122462309.

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 309338716458 in words is "three hundred nine billion, three hundred thirty-eight million, seven hundred sixteen thousand, four hundred fifty-eight".