68504864 has 24 divisors (see below), whose sum is σ = 135209088. Its totient is φ = 34166080.

The previous prime is 68504851. The next prime is 68504881. The reversal of 68504864 is 46840586.

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, 11309 + ... + 16275.

It is an arithmetic number, because the mean of its divisors is an integer number (5633712).

Almost surely, 2^68504864 is an apocalyptic number.

It is an amenable number.

68504864 is a deficient number, since it is larger than the sum of its proper divisors (66704224).

68504864 is a wasteful number, since it uses less digits than its factorization.

68504864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408 (or 5400 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 68504864 is about 8276.7665183935. The cubic root of 68504864 is about 409.1731581486.

The spelling of 68504864 in words is "sixty-eight million, five hundred four thousand, eight hundred sixty-four".