309703973067 has 16 divisors (see below), whose sum is σ = 465105918880. Its totient is φ = 203640967296.

The previous prime is 309703973023. The next prime is 309703973069. The reversal of 309703973067 is 760379307903.

It is not a de Polignac number, because 309703973067 - 2⁸ = 309703972811 is a prime.

It is a super-2 number, since 2×309703973067² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (309703973069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78563218 + ... + 78567159.

It is an arithmetic number, because the mean of its divisors is an integer number (29069119930).

Almost surely, 2^309703973067 is an apocalyptic number.

309703973067 is a deficient number, since it is larger than the sum of its proper divisors (155401945813).

309703973067 is a wasteful number, since it uses less digits than its factorization.

309703973067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157130459 (or 157130453 counting only the distinct ones).

The product of its (nonzero) digits is 4500846, while the sum is 54.

The spelling of 309703973067 in words is "three hundred nine billion, seven hundred three million, nine hundred seventy-three thousand, sixty-seven".