77967795266 has 64 divisors (see below), whose sum is σ = 130695586560. Its totient is φ = 34694922240.

The previous prime is 77967795259. The next prime is 77967795313. The reversal of 77967795266 is 66259776977.

It is a self number, because there is not a number n which added to its sum of digits gives 77967795266.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54636845 + ... + 54638271.

It is an arithmetic number, because the mean of its divisors is an integer number (2042118540).

Almost surely, 2^77967795266 is an apocalyptic number.

77967795266 is a deficient number, since it is larger than the sum of its proper divisors (52727791294).

77967795266 is a wasteful number, since it uses less digits than its factorization.

77967795266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its digits is 420078960, while the sum is 71.

The spelling of 77967795266 in words is "seventy-seven billion, nine hundred sixty-seven million, seven hundred ninety-five thousand, two hundred sixty-six".