309797501345 has 16 divisors (see below), whose sum is σ = 374272704000. Its totient is φ = 246166202688.

The previous prime is 309797501333. The next prime is 309797501359. The reversal of 309797501345 is 543105797903.

It is a cyclic number.

It is not a de Polignac number, because 309797501345 - 2⁴ = 309797501329 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131636 + ... + 798074.

It is an arithmetic number, because the mean of its divisors is an integer number (23392044000).

Almost surely, 2^309797501345 is an apocalyptic number.

It is an amenable number.

309797501345 is a deficient number, since it is larger than the sum of its proper divisors (64475202655).

309797501345 is a wasteful number, since it uses less digits than its factorization.

309797501345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667072.

The product of its (nonzero) digits is 3572100, while the sum is 53.

The spelling of 309797501345 in words is "three hundred nine billion, seven hundred ninety-seven million, five hundred one thousand, three hundred forty-five".