778056115596 has 24 divisors (see below), whose sum is σ = 1834180398960. Its totient is φ = 256678305792.

The previous prime is 778056115553. The next prime is 778056115601. The reversal of 778056115596 is 695511650877.

It is a happy number.

It is a super-2 number, since 2×778056115596² (a number of 25 digits) contains 22 as substring.

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, 334215381 + ... + 334217708.

It is an arithmetic number, because the mean of its divisors is an integer number (76424183290).

Almost surely, 2^778056115596 is an apocalyptic number.

It is an amenable number.

778056115596 is an abundant number, since it is smaller than the sum of its proper divisors (1056124283364).

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

778056115596 is a wasteful number, since it uses less digits than its factorization.

778056115596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668433193 (or 668433191 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 60.

The spelling of 778056115596 in words is "seven hundred seventy-eight billion, fifty-six million, one hundred fifteen thousand, five hundred ninety-six".