77967796275 has 90 divisors (see below), whose sum is σ = 147462640780. Its totient is φ = 39379439520.

The previous prime is 77967796261. The next prime is 77967796327. The reversal of 77967796275 is 57269776977.

It is not a de Polignac number, because 77967796275 - 2⁵ = 77967796243 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 29320896 + ... + 29323554.

Almost surely, 2^77967796275 is an apocalyptic number.

77967796275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

77967796275 is a deficient number, since it is larger than the sum of its proper divisors (69494844505).

77967796275 is an equidigital number, since it uses as much as digits as its factorization.

77967796275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751 (or 2686 counting only the distinct ones).

The product of its digits is 490092120, while the sum is 72.

The spelling of 77967796275 in words is "seventy-seven billion, nine hundred sixty-seven million, seven hundred ninety-six thousand, two hundred seventy-five".