306631586836 has 6 divisors (see below), whose sum is σ = 536605276970. Its totient is φ = 153315793416.

The previous prime is 306631586819. The next prime is 306631586857. The reversal of 306631586836 is 638685136603.

It can be written as a sum of positive squares in only one way, i.e., 283843872900 + 22787713936 = 532770^2 + 150956^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 38328948351 + ... + 38328948358.

Almost surely, 2^306631586836 is an apocalyptic number.

It is an amenable number.

306631586836 is a deficient number, since it is larger than the sum of its proper divisors (229973690134).

306631586836 is a wasteful number, since it uses less digits than its factorization.

306631586836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76657896713 (or 76657896711 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 306631586836 in words is "three hundred six billion, six hundred thirty-one million, five hundred eighty-six thousand, eight hundred thirty-six".