671086636364 has 24 divisors (see below), whose sum is σ = 1248686953920. Its totient is φ = 314484106496.

The previous prime is 671086636357. The next prime is 671086636387. The reversal of 671086636364 is 463636680176.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20630027 + ... + 20662530.

It is an arithmetic number, because the mean of its divisors is an integer number (52028623080).

Almost surely, 2^671086636364 is an apocalyptic number.

It is an amenable number.

671086636364 is a deficient number, since it is larger than the sum of its proper divisors (577600317556).

671086636364 is a wasteful number, since it uses less digits than its factorization.

671086636364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41292817 (or 41292815 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 56.

The spelling of 671086636364 in words is "six hundred seventy-one billion, eighty-six million, six hundred thirty-six thousand, three hundred sixty-four".