76865656797 has 24 divisors (see below), whose sum is σ = 114364651128. Its totient is φ = 49717670400.

The previous prime is 76865656793. The next prime is 76865656801. The reversal of 76865656797 is 79765656867.

76865656797 is a `hidden beast` number, since 7 + 6 + 8 + 6 + 56 + 567 + 9 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (76865656793) and next prime (76865656801).

It can be written as a sum of positive squares in 4 ways, for example, as 984139641 + 75881517156 = 31371^2 + 275466^2 .

It is not a de Polignac number, because 76865656797 - 2² = 76865656793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76865656793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 508648 + ... + 642225.

It is an arithmetic number, because the mean of its divisors is an integer number (4765193797).

Almost surely, 2^76865656797 is an apocalyptic number.

It is an amenable number.

76865656797 is a deficient number, since it is larger than the sum of its proper divisors (37498994331).

76865656797 is a wasteful number, since it uses less digits than its factorization.

76865656797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151101 (or 1151098 counting only the distinct ones).

The product of its digits is 800150400, while the sum is 72.

The spelling of 76865656797 in words is "seventy-six billion, eight hundred sixty-five million, six hundred fifty-six thousand, seven hundred ninety-seven".