78748680 has 64 divisors (see below), whose sum is σ = 243878400. Its totient is φ = 20321280.

The previous prime is 78748679. The next prime is 78748693. The reversal of 78748680 is 8684787.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6865 + ... + 14304.

It is an arithmetic number, because the mean of its divisors is an integer number (3810600).

Almost surely, 2^78748680 is an apocalyptic number.

It is an amenable number.

78748680 is an abundant number, since it is smaller than the sum of its proper divisors (165129720).

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

78748680 is a wasteful number, since it uses less digits than its factorization.

78748680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21214 (or 21210 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 78748680 is about 8874.0453007633. The cubic root of 78748680 is about 428.6285492119.

The spelling of 78748680 in words is "seventy-eight million, seven hundred forty-eight thousand, six hundred eighty".