86172513883 has 2 divisors, whose sum is σ = 86172513884. Its totient is φ = 86172513882.

The previous prime is 86172513799. The next prime is 86172513929. The reversal of 86172513883 is 38831527168.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86172513883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86172513883.

It is not a weakly prime, because it can be changed into another prime (86172516883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43086256941 + 43086256942.

It is an arithmetic number, because the mean of its divisors is an integer number (43086256942).

Almost surely, 2^86172513883 is an apocalyptic number.

86172513883 is a deficient number, since it is larger than the sum of its proper divisors (1).

86172513883 is an equidigital number, since it uses as much as digits as its factorization.

86172513883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 52.

The spelling of 86172513883 in words is "eighty-six billion, one hundred seventy-two million, five hundred thirteen thousand, eight hundred eighty-three".