8311798975559 has 2 divisors, whose sum is σ = 8311798975560. Its totient is φ = 8311798975558.

The previous prime is 8311798975463. The next prime is 8311798975573. The reversal of 8311798975559 is 9555798971138.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8311798975559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8311798975559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8311798978559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4155899487779 + 4155899487780.

It is an arithmetic number, because the mean of its divisors is an integer number (4155899487780).

Almost surely, 2^{8311798975559} is an apocalyptic number.

8311798975559 is a deficient number, since it is larger than the sum of its proper divisors (1).

8311798975559 is an equidigital number, since it uses as much as digits as its factorization.

8311798975559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304000, while the sum is 77.

The spelling of 8311798975559 in words is "eight trillion, three hundred eleven billion, seven hundred ninety-eight million, nine hundred seventy-five thousand, five hundred fifty-nine".