860091231117913 has 2 divisors, whose sum is σ = 860091231117914. Its totient is φ = 860091231117912.

The previous prime is 860091231117869. The next prime is 860091231117941. The reversal of 860091231117913 is 319711132190068.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 798936907382784 + 61154323735129 = 28265472^2 + 7820123^2 .

It is a cyclic number.

It is not a de Polignac number, because 860091231117913 - 2⁹ = 860091231117401 is a prime.

It is not a weakly prime, because it can be changed into another prime (860091231117413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430045615558956 + 430045615558957.

It is an arithmetic number, because the mean of its divisors is an integer number (430045615558957).

Almost surely, 2^{860091231117913} is an apocalyptic number.

It is an amenable number.

860091231117913 is a deficient number, since it is larger than the sum of its proper divisors (1).

860091231117913 is an equidigital number, since it uses as much as digits as its factorization.

860091231117913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 52.

The spelling of 860091231117913 in words is "eight hundred sixty trillion, ninety-one billion, two hundred thirty-one million, one hundred seventeen thousand, nine hundred thirteen".