8319916793 has 2 divisors, whose sum is σ = 8319916794. Its totient is φ = 8319916792.

The previous prime is 8319916777. The next prime is 8319916831. The reversal of 8319916793 is 3976199138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7512902329 + 807014464 = 86677^2 + 28408^2 .

It is a cyclic number.

It is not a de Polignac number, because 8319916793 - 2⁴ = 8319916777 is a prime.

It is not a weakly prime, because it can be changed into another prime (8319916393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4159958396 + 4159958397.

It is an arithmetic number, because the mean of its divisors is an integer number (4159958397).

Almost surely, 2^8319916793 is an apocalyptic number.

It is an amenable number.

8319916793 is a deficient number, since it is larger than the sum of its proper divisors (1).

8319916793 is an equidigital number, since it uses as much as digits as its factorization.

8319916793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2204496, while the sum is 56.

The square root of 8319916793 is about 91213.5778982493. The cubic root of 8319916793 is about 2026.3120526535.

The spelling of 8319916793 in words is "eight billion, three hundred nineteen million, nine hundred sixteen thousand, seven hundred ninety-three".