86695042039 has 2 divisors, whose sum is σ = 86695042040. Its totient is φ = 86695042038.

The previous prime is 86695041997. The next prime is 86695042079. The reversal of 86695042039 is 93024059668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86695042039 - 2³³ = 78105107447 is a prime.

It is a super-3 number, since 3×86695042039³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86695042079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43347521019 + 43347521020.

It is an arithmetic number, because the mean of its divisors is an integer number (43347521020).

Almost surely, 2^86695042039 is an apocalyptic number.

86695042039 is a deficient number, since it is larger than the sum of its proper divisors (1).

86695042039 is an equidigital number, since it uses as much as digits as its factorization.

86695042039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 86695042039 in words is "eighty-six billion, six hundred ninety-five million, forty-two thousand, thirty-nine".