8097612779 has 2 divisors, whose sum is σ = 8097612780. Its totient is φ = 8097612778.

The previous prime is 8097612749. The next prime is 8097612833. The reversal of 8097612779 is 9772167908.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8097612779 is a prime.

It is not a weakly prime, because it can be changed into another prime (8097612739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4048806389 + 4048806390.

It is an arithmetic number, because the mean of its divisors is an integer number (4048806390).

Almost surely, 2^8097612779 is an apocalyptic number.

8097612779 is a deficient number, since it is larger than the sum of its proper divisors (1).

8097612779 is an equidigital number, since it uses as much as digits as its factorization.

8097612779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 56.

The square root of 8097612779 is about 89986.7366838025. The cubic root of 8097612779 is about 2008.1015364913.

The spelling of 8097612779 in words is "eight billion, ninety-seven million, six hundred twelve thousand, seven hundred seventy-nine".