818568542956 has 6 divisors (see below), whose sum is σ = 1432494950180. Its totient is φ = 409284271476.

The previous prime is 818568542947. The next prime is 818568542963. The reversal of 818568542956 is 659245865818.

It is a junction number, because it is equal to n+sod(n) for n = 818568542891 and 818568542900.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102321067866 + ... + 102321067873.

Almost surely, 2^818568542956 is an apocalyptic number.

It is an amenable number.

818568542956 is a deficient number, since it is larger than the sum of its proper divisors (613926407224).

818568542956 is a wasteful number, since it uses less digits than its factorization.

818568542956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204642135743 (or 204642135741 counting only the distinct ones).

The product of its digits is 165888000, while the sum is 67.

The spelling of 818568542956 in words is "eight hundred eighteen billion, five hundred sixty-eight million, five hundred forty-two thousand, nine hundred fifty-six".