68313557572 has 24 divisors (see below), whose sum is σ = 130926902400. Its totient is φ = 30994937376.

The previous prime is 68313557567. The next prime is 68313557693. The reversal of 68313557572 is 27575531386.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 11130172 + ... + 11136307.

It is an arithmetic number, because the mean of its divisors is an integer number (5455287600).

Almost surely, 2^68313557572 is an apocalyptic number.

It is an amenable number.

68313557572 is a deficient number, since it is larger than the sum of its proper divisors (62613344828).

68313557572 is a wasteful number, since it uses less digits than its factorization.

68313557572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22266555 (or 22266553 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 52.

The spelling of 68313557572 in words is "sixty-eight billion, three hundred thirteen million, five hundred fifty-seven thousand, five hundred seventy-two".