76394379816 has 96 divisors (see below), whose sum is σ = 224993120040. Its totient is φ = 23319097344.

The previous prime is 76394379793. The next prime is 76394379821. The reversal of 76394379816 is 61897349367.

76394379816 is a `hidden beast` number, since 76 + 39 + 437 + 98 + 16 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 74152736100 + 2241643716 = 272310^2 + 47346^2 .

It is a super-2 number, since 2×76394379816² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 798141 + ... + 888716.

Almost surely, 2^76394379816 is an apocalyptic number.

It is an amenable number.

76394379816 is an abundant number, since it is smaller than the sum of its proper divisors (148598740224).

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

76394379816 is a wasteful number, since it uses less digits than its factorization.

76394379816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686923 (or 1686916 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 63.

The spelling of 76394379816 in words is "seventy-six billion, three hundred ninety-four million, three hundred seventy-nine thousand, eight hundred sixteen".