86172513799 has 2 divisors, whose sum is σ = 86172513800. Its totient is φ = 86172513798.

The previous prime is 86172513793. The next prime is 86172513883. The reversal of 86172513799 is 99731527168.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86172513799 - 2⁷ = 86172513671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86172513793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43086256899 + 43086256900.

It is an arithmetic number, because the mean of its divisors is an integer number (43086256900).

Almost surely, 2^86172513799 is an apocalyptic number.

86172513799 is a deficient number, since it is larger than the sum of its proper divisors (1).

86172513799 is an equidigital number, since it uses as much as digits as its factorization.

86172513799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 58.

The spelling of 86172513799 in words is "eighty-six billion, one hundred seventy-two million, five hundred thirteen thousand, seven hundred ninety-nine".