78775260788 has 48 divisors (see below), whose sum is σ = 159486136320. Its totient is φ = 33348381696.

The previous prime is 78775260779. The next prime is 78775260799. The reversal of 78775260788 is 88706257787.

It is a congruent number.

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, 765956 + ... + 862692.

It is an arithmetic number, because the mean of its divisors is an integer number (3322627840).

Almost surely, 2^78775260788 is an apocalyptic number.

It is an amenable number.

78775260788 is an abundant number, since it is smaller than the sum of its proper divisors (80710875532).

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

78775260788 is a wasteful number, since it uses less digits than its factorization.

78775260788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97104 (or 97102 counting only the distinct ones).

The product of its (nonzero) digits is 73758720, while the sum is 65.

The spelling of 78775260788 in words is "seventy-eight billion, seven hundred seventy-five million, two hundred sixty thousand, seven hundred eighty-eight".