68374864 has 20 divisors (see below), whose sum is σ = 134723520. Its totient is φ = 33607520.

The previous prime is 68374861. The next prime is 68374877. The reversal of 68374864 is 46847386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68374861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35272 + ... + 37159.

It is an arithmetic number, because the mean of its divisors is an integer number (6736176).

Almost surely, 2^68374864 is an apocalyptic number.

It is an amenable number.

68374864 is a deficient number, since it is larger than the sum of its proper divisors (66348656).

68374864 is a wasteful number, since it uses less digits than its factorization.

68374864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72498 (or 72492 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The square root of 68374864 is about 8268.9094806994. The cubic root of 68374864 is about 408.9141682981.

The spelling of 68374864 in words is "sixty-eight million, three hundred seventy-four thousand, eight hundred sixty-four".