677563268218 has 16 divisors (see below), whose sum is σ = 1018251095616. Its totient is φ = 338146829280.

The previous prime is 677563268191. The next prime is 677563268281. The reversal of 677563268218 is 812862365776.

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, 2155030 + ... + 2449342.

It is an arithmetic number, because the mean of its divisors is an integer number (63640693476).

Almost surely, 2^677563268218 is an apocalyptic number.

677563268218 is a deficient number, since it is larger than the sum of its proper divisors (340687827398).

677563268218 is a wasteful number, since it uses less digits than its factorization.

677563268218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296469.

The product of its digits is 40642560, while the sum is 61.

The spelling of 677563268218 in words is "six hundred seventy-seven billion, five hundred sixty-three million, two hundred sixty-eight thousand, two hundred eighteen".