86516393137 has 2 divisors, whose sum is σ = 86516393138. Its totient is φ = 86516393136.

The previous prime is 86516393101. The next prime is 86516393141. The reversal of 86516393137 is 73139361568.

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., 51366142881 + 35150250256 = 226641^2 + 187484^2 .

It is a cyclic number.

It is not a de Polignac number, because 86516393137 - 2⁷ = 86516393009 is a prime.

It is not a weakly prime, because it can be changed into another prime (86516393167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43258196568 + 43258196569.

It is an arithmetic number, because the mean of its divisors is an integer number (43258196569).

Almost surely, 2^86516393137 is an apocalyptic number.

It is an amenable number.

86516393137 is a deficient number, since it is larger than the sum of its proper divisors (1).

86516393137 is an equidigital number, since it uses as much as digits as its factorization.

86516393137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 52.

The spelling of 86516393137 in words is "eighty-six billion, five hundred sixteen million, three hundred ninety-three thousand, one hundred thirty-seven".