306830812872 has 32 divisors (see below), whose sum is σ = 767175331680. Its totient is φ = 102263831040.

The previous prime is 306830812859. The next prime is 306830812877. The reversal of 306830812872 is 278218038603.

It is not an unprimeable number, because it can be changed into a prime (306830812877) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 627058 + ... + 1003425.

It is an arithmetic number, because the mean of its divisors is an integer number (23974229115).

Almost surely, 2^306830812872 is an apocalyptic number.

It is an amenable number.

306830812872 is an abundant number, since it is smaller than the sum of its proper divisors (460344518808).

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

306830812872 is a wasteful number, since it uses less digits than its factorization.

306830812872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638333 (or 1638329 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 306830812872 in words is "three hundred six billion, eight hundred thirty million, eight hundred twelve thousand, eight hundred seventy-two".