78795513908 has 12 divisors (see below), whose sum is σ = 141618964452. Its totient is φ = 38332952640.

The previous prime is 78795513887. The next prime is 78795513913. The reversal of 78795513908 is 80931559787.

It can be written as a sum of positive squares in 2 ways, for example, as 46581725584 + 32213788324 = 215828^2 + 179482^2 .

It is a congruent number.

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, 266200913 + ... + 266201208.

It is an arithmetic number, because the mean of its divisors is an integer number (11801580371).

Almost surely, 2^78795513908 is an apocalyptic number.

It is an amenable number.

78795513908 is a deficient number, since it is larger than the sum of its proper divisors (62823450544).

78795513908 is a wasteful number, since it uses less digits than its factorization.

78795513908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532402162 (or 532402160 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 62.

The spelling of 78795513908 in words is "seventy-eight billion, seven hundred ninety-five million, five hundred thirteen thousand, nine hundred eight".