8190690617 has 2 divisors, whose sum is σ = 8190690618. Its totient is φ = 8190690616.

The previous prime is 8190690553. The next prime is 8190690623. The reversal of 8190690617 is 7160960918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6873073216 + 1317617401 = 82904^2 + 36299^2 .

It is a cyclic number.

It is not a de Polignac number, because 8190690617 - 2⁶ = 8190690553 is a prime.

It is not a weakly prime, because it can be changed into another prime (8190690667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4095345308 + 4095345309.

It is an arithmetic number, because the mean of its divisors is an integer number (4095345309).

Almost surely, 2^8190690617 is an apocalyptic number.

It is an amenable number.

8190690617 is a deficient number, since it is larger than the sum of its proper divisors (1).

8190690617 is an equidigital number, since it uses as much as digits as its factorization.

8190690617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 8190690617 is about 90502.4343153266. The cubic root of 8190690617 is about 2015.7662705149.

The spelling of 8190690617 in words is "eight billion, one hundred ninety million, six hundred ninety thousand, six hundred seventeen".