77379311876 has 18 divisors (see below), whose sum is σ = 143847875178. Its totient is φ = 36413793280.

The previous prime is 77379311831. The next prime is 77379311917. The reversal of 77379311876 is 67811397377.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 55866049600 + 21513262276 = 236360^2 + 146674^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33467405 + ... + 33469716.

It is an arithmetic number, because the mean of its divisors is an integer number (7991548621).

Almost surely, 2^77379311876 is an apocalyptic number.

It is an amenable number.

77379311876 is a deficient number, since it is larger than the sum of its proper divisors (66468563302).

77379311876 is a wasteful number, since it uses less digits than its factorization.

77379311876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66937159 (or 66937140 counting only the distinct ones).

The product of its digits is 9335088, while the sum is 59.

The spelling of 77379311876 in words is "seventy-seven billion, three hundred seventy-nine million, three hundred eleven thousand, eight hundred seventy-six".