78454768908 has 12 divisors (see below), whose sum is σ = 183061127480. Its totient is φ = 26151589632.

The previous prime is 78454768891. The next prime is 78454768913. The reversal of 78454768908 is 80986745487.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 3268948693 + ... + 3268948716.

Almost surely, 2^78454768908 is an apocalyptic number.

It is an amenable number.

78454768908 is an abundant number, since it is smaller than the sum of its proper divisors (104606358572).

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

78454768908 is a wasteful number, since it uses less digits than its factorization.

78454768908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537897416 (or 6537897414 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 66.

The spelling of 78454768908 in words is "seventy-eight billion, four hundred fifty-four million, seven hundred sixty-eight thousand, nine hundred eight".