80682756793 has 2 divisors, whose sum is σ = 80682756794. Its totient is φ = 80682756792.

The previous prime is 80682756779. The next prime is 80682756953. The reversal of 80682756793 is 39765728608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57711413824 + 22971342969 = 240232^2 + 151563^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80682756793 is a prime.

It is not a weakly prime, because it can be changed into another prime (80682754793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40341378396 + 40341378397.

It is an arithmetic number, because the mean of its divisors is an integer number (40341378397).

Almost surely, 2^80682756793 is an apocalyptic number.

It is an amenable number.

80682756793 is a deficient number, since it is larger than the sum of its proper divisors (1).

80682756793 is an equidigital number, since it uses as much as digits as its factorization.

80682756793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 80682756793 in words is "eighty billion, six hundred eighty-two million, seven hundred fifty-six thousand, seven hundred ninety-three".