68972516 has 24 divisors (see below), whose sum is σ = 123963840. Its totient is φ = 33560352.

The previous prime is 68972509. The next prime is 68972569. The reversal of 68972516 is 61527986.

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, 61190 + ... + 62306.

It is an arithmetic number, because the mean of its divisors is an integer number (5165160).

Almost surely, 2^68972516 is an apocalyptic number.

It is an amenable number.

68972516 is a deficient number, since it is larger than the sum of its proper divisors (54991324).

68972516 is a wasteful number, since it uses less digits than its factorization.

68972516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1521 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 68972516 is about 8304.9693557532. The cubic root of 68972516 is about 410.1021280386.

The spelling of 68972516 in words is "sixty-eight million, nine hundred seventy-two thousand, five hundred sixteen".