86139478199 has 2 divisors, whose sum is σ = 86139478200. Its totient is φ = 86139478198.

The previous prime is 86139478109. The next prime is 86139478213. The reversal of 86139478199 is 99187493168.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86139478199 - 2⁸ = 86139477943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86139478109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43069739099 + 43069739100.

It is an arithmetic number, because the mean of its divisors is an integer number (43069739100).

Almost surely, 2^86139478199 is an apocalyptic number.

86139478199 is a deficient number, since it is larger than the sum of its proper divisors (1).

86139478199 is an equidigital number, since it uses as much as digits as its factorization.

86139478199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 65.

The spelling of 86139478199 in words is "eighty-six billion, one hundred thirty-nine million, four hundred seventy-eight thousand, one hundred ninety-nine".