78528768 has 36 divisors (see below), whose sum is σ = 209003088. Its totient is φ = 26176000.

The previous prime is 78528761. The next prime is 78528787. The reversal of 78528768 is 86782587.

It is a self number, because there is not a number n which added to its sum of digits gives 78528768.

It is not an unprimeable number, because it can be changed into a prime (78528761) 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, 50358 + ... + 51893.

Almost surely, 2^78528768 is an apocalyptic number.

It is an amenable number.

78528768 is an abundant number, since it is smaller than the sum of its proper divisors (130474320).

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

78528768 is a wasteful number, since it uses less digits than its factorization.

78528768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102270 (or 102256 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 51.

The square root of 78528768 is about 8861.6458967846. The cubic root of 78528768 is about 428.2291840362.

The spelling of 78528768 in words is "seventy-eight million, five hundred twenty-eight thousand, seven hundred sixty-eight".