68856947944 has 16 divisors (see below), whose sum is σ = 130741041600. Its totient is φ = 33992670192.

The previous prime is 68856947933. The next prime is 68856947959. The reversal of 68856947944 is 44974965886.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54474802 + ... + 54476065.

It is an arithmetic number, because the mean of its divisors is an integer number (8171315100).

Almost surely, 2^68856947944 is an apocalyptic number.

It is an amenable number.

68856947944 is a deficient number, since it is larger than the sum of its proper divisors (61884093656).

68856947944 is a wasteful number, since it uses less digits than its factorization.

68856947944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108950952 (or 108950948 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 70.

The spelling of 68856947944 in words is "sixty-eight billion, eight hundred fifty-six million, nine hundred forty-seven thousand, nine hundred forty-four".