309451505204 has 12 divisors (see below), whose sum is σ = 548064714624. Its totient is φ = 152861586744.

The previous prime is 309451505177. The next prime is 309451505221. The reversal of 309451505204 is 402505154903.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 466041092 + ... + 466041755.

It is an arithmetic number, because the mean of its divisors is an integer number (45672059552).

Almost surely, 2^309451505204 is an apocalyptic number.

It is an amenable number.

309451505204 is a deficient number, since it is larger than the sum of its proper divisors (238613209420).

309451505204 is a wasteful number, since it uses less digits than its factorization.

309451505204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932082934 (or 932082932 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 309451505204 in words is "three hundred nine billion, four hundred fifty-one million, five hundred five thousand, two hundred four".