68768865 has 32 divisors (see below), whose sum is σ = 133372800. Its totient is φ = 33341760.

The previous prime is 68768857. The next prime is 68768879. The reversal of 68768865 is 56886786.

It is not a de Polignac number, because 68768865 - 2³ = 68768857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21670 + ... + 24639.

It is an arithmetic number, because the mean of its divisors is an integer number (4167900).

Almost surely, 2^68768865 is an apocalyptic number.

It is an amenable number.

68768865 is a deficient number, since it is larger than the sum of its proper divisors (64603935).

68768865 is a wasteful number, since it uses less digits than its factorization.

68768865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46334 (or 46328 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 68768865 is about 8292.6995001628. The cubic root of 68768865 is about 409.6981021663.

The spelling of 68768865 in words is "sixty-eight million, seven hundred sixty-eight thousand, eight hundred sixty-five".