80115378793 has 2 divisors, whose sum is σ = 80115378794. Its totient is φ = 80115378792.

The previous prime is 80115378727. The next prime is 80115378799. The reversal of 80115378793 is 39787351108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61200327769 + 18915051024 = 247387^2 + 137532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80115378793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80115378793.

It is not a weakly prime, because it can be changed into another prime (80115378799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40057689396 + 40057689397.

It is an arithmetic number, because the mean of its divisors is an integer number (40057689397).

Almost surely, 2^80115378793 is an apocalyptic number.

It is an amenable number.

80115378793 is a deficient number, since it is larger than the sum of its proper divisors (1).

80115378793 is an equidigital number, since it uses as much as digits as its factorization.

80115378793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 80115378793 in words is "eighty billion, one hundred fifteen million, three hundred seventy-eight thousand, seven hundred ninety-three".