78068868 has 24 divisors (see below), whose sum is σ = 182481600. Its totient is φ = 25977120.

The previous prime is 78068863. The next prime is 78068873. The reversal of 78068868 is 86886087.

It is an interprime number because it is at equal distance from previous prime (78068863) and next prime (78068873).

It is a self number, because there is not a number n which added to its sum of digits gives 78068868.

It is not an unprimeable number, because it can be changed into a prime (78068863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1758 + ... + 12618.

It is an arithmetic number, because the mean of its divisors is an integer number (7603400).

Almost surely, 2^78068868 is an apocalyptic number.

It is an amenable number.

78068868 is an abundant number, since it is smaller than the sum of its proper divisors (104412732).

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

78068868 is a wasteful number, since it uses less digits than its factorization.

78068868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11467 (or 11465 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 78068868 is about 8835.6588888435. The cubic root of 78068868 is about 427.3915788111.

The spelling of 78068868 in words is "seventy-eight million, sixty-eight thousand, eight hundred sixty-eight".