86101809877 has 2 divisors, whose sum is σ = 86101809878. Its totient is φ = 86101809876.

The previous prime is 86101809839. The next prime is 86101809931. The reversal of 86101809877 is 77890810168.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84494281041 + 1607528836 = 290679^2 + 40094^2 .

It is a cyclic number.

It is not a de Polignac number, because 86101809877 - 2²³ = 86093421269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86101806877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43050904938 + 43050904939.

It is an arithmetic number, because the mean of its divisors is an integer number (43050904939).

Almost surely, 2^86101809877 is an apocalyptic number.

It is an amenable number.

86101809877 is a deficient number, since it is larger than the sum of its proper divisors (1).

86101809877 is an equidigital number, since it uses as much as digits as its factorization.

86101809877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 55.

The spelling of 86101809877 in words is "eighty-six billion, one hundred one million, eight hundred nine thousand, eight hundred seventy-seven".