77809496318 has 8 divisors (see below), whose sum is σ = 116715644040. Its totient is φ = 38904281640.

The previous prime is 77809496161. The next prime is 77809496341. The reversal of 77809496318 is 81369490877.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 38588 + ... + 396368.

It is an arithmetic number, because the mean of its divisors is an integer number (14589455505).

Almost surely, 2^77809496318 is an apocalyptic number.

77809496318 is a deficient number, since it is larger than the sum of its proper divisors (38906147722).

77809496318 is a wasteful number, since it uses less digits than its factorization.

77809496318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466522.

The product of its (nonzero) digits is 18289152, while the sum is 62.

The spelling of 77809496318 in words is "seventy-seven billion, eight hundred nine million, four hundred ninety-six thousand, three hundred eighteen".