76865656793 has 2 divisors, whose sum is σ = 76865656794. Its totient is φ = 76865656792.

The previous prime is 76865656787. The next prime is 76865656801. The reversal of 76865656793 is 39765656867.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73401981184 + 3463675609 = 270928^2 + 58853^2 .

It is a cyclic number.

It is not a de Polignac number, because 76865656793 - 2¹⁸ = 76865394649 is a prime.

It is not a weakly prime, because it can be changed into another prime (76865656733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38432828396 + 38432828397.

It is an arithmetic number, because the mean of its divisors is an integer number (38432828397).

Almost surely, 2^76865656793 is an apocalyptic number.

It is an amenable number.

76865656793 is a deficient number, since it is larger than the sum of its proper divisors (1).

76865656793 is an equidigital number, since it uses as much as digits as its factorization.

76865656793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 342921600, while the sum is 68.

The spelling of 76865656793 in words is "seventy-six billion, eight hundred sixty-five million, six hundred fifty-six thousand, seven hundred ninety-three".