306728326056 has 16 divisors (see below), whose sum is σ = 766820815200. Its totient is φ = 102242775344.

The previous prime is 306728326007. The next prime is 306728326057. The reversal of 306728326056 is 650623827603.

It is a junction number, because it is equal to n+sod(n) for n = 306728325996 and 306728326014.

It is not an unprimeable number, because it can be changed into a prime (306728326057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6390173436 + ... + 6390173483.

It is an arithmetic number, because the mean of its divisors is an integer number (47926300950).

Almost surely, 2^306728326056 is an apocalyptic number.

It is an amenable number.

306728326056 is an abundant number, since it is smaller than the sum of its proper divisors (460092489144).

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

306728326056 is a wasteful number, since it uses less digits than its factorization.

306728326056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12780346928 (or 12780346924 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 306728326056 in words is "three hundred six billion, seven hundred twenty-eight million, three hundred twenty-six thousand, fifty-six".