309377509472 has 24 divisors (see below), whose sum is σ = 635569015536. Its totient is φ = 147963156352.

The previous prime is 309377509417. The next prime is 309377509487. The reversal of 309377509472 is 274905773903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210174203 + ... + 210175674.

It is an arithmetic number, because the mean of its divisors is an integer number (26482042314).

Almost surely, 2^309377509472 is an apocalyptic number.

309377509472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

309377509472 is an abundant number, since it is smaller than the sum of its proper divisors (326191506064).

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

309377509472 is a wasteful number, since it uses less digits than its factorization.

309377509472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420349910 (or 420349902 counting only the distinct ones).

The product of its (nonzero) digits is 10001880, while the sum is 56.

The spelling of 309377509472 in words is "three hundred nine billion, three hundred seventy-seven million, five hundred nine thousand, four hundred seventy-two".