78795394502856 has 32 divisors (see below), whose sum is σ = 203781192681600. Its totient is φ = 25359437311040.

The previous prime is 78795394502843. The next prime is 78795394502933. The reversal of 78795394502856 is 65820549359787.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56605886160 + ... + 56605887551.

It is an arithmetic number, because the mean of its divisors is an integer number (6368162271300).

Almost surely, 2^{78795394502856} is an apocalyptic number.

It is an amenable number.

78795394502856 is an abundant number, since it is smaller than the sum of its proper divisors (124985798178744).

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

78795394502856 is a wasteful number, since it uses less digits than its factorization.

78795394502856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113211773749 (or 113211773745 counting only the distinct ones).

The product of its (nonzero) digits is 4572288000, while the sum is 78.

The spelling of 78795394502856 in words is "seventy-eight trillion, seven hundred ninety-five billion, three hundred ninety-four million, five hundred two thousand, eight hundred fifty-six".