68077768 has 16 divisors (see below), whose sum is σ = 139250160. Its totient is φ = 30944400.

The previous prime is 68077759. The next prime is 68077777. The reversal of 68077768 is 86777086.

It is an interprime number because it is at equal distance from previous prime (68077759) and next prime (68077777).

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, 386718 + ... + 386893.

It is an arithmetic number, because the mean of its divisors is an integer number (8703135).

Almost surely, 2^68077768 is an apocalyptic number.

It is an amenable number.

68077768 is an abundant number, since it is smaller than the sum of its proper divisors (71172392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68077768 is a wasteful number, since it uses less digits than its factorization.

68077768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773628 (or 773624 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 49.

The square root of 68077768 is about 8250.9252814457. The cubic root of 68077768 is about 408.3210500077.

The spelling of 68077768 in words is "sixty-eight million, seventy-seven thousand, seven hundred sixty-eight".