86605675634399 has 2 divisors, whose sum is σ = 86605675634400. Its totient is φ = 86605675634398.

The previous prime is 86605675634347. The next prime is 86605675634431. The reversal of 86605675634399 is 99343657650668.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86605675634399 is a prime.

It is a super-2 number, since 2×86605675634399² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86605675630399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43302837817199 + 43302837817200.

It is an arithmetic number, because the mean of its divisors is an integer number (43302837817200).

Almost surely, 2^{86605675634399} is an apocalyptic number.

86605675634399 is a deficient number, since it is larger than the sum of its proper divisors (1).

86605675634399 is an equidigital number, since it uses as much as digits as its factorization.

86605675634399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5290790400, while the sum is 77.

The spelling of 86605675634399 in words is "eighty-six trillion, six hundred five billion, six hundred seventy-five million, six hundred thirty-four thousand, three hundred ninety-nine".