86999892193 has 2 divisors, whose sum is σ = 86999892194. Its totient is φ = 86999892192.

The previous prime is 86999892173. The next prime is 86999892211. The reversal of 86999892193 is 39129899968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71045170849 + 15954721344 = 266543^2 + 126312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86999892193 is a prime.

It is not a weakly prime, because it can be changed into another prime (86999892113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43499946096 + 43499946097.

It is an arithmetic number, because the mean of its divisors is an integer number (43499946097).

Almost surely, 2^86999892193 is an apocalyptic number.

It is an amenable number.

86999892193 is a deficient number, since it is larger than the sum of its proper divisors (1).

86999892193 is an equidigital number, since it uses as much as digits as its factorization.

86999892193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136048896, while the sum is 73.

The spelling of 86999892193 in words is "eighty-six billion, nine hundred ninety-nine million, eight hundred ninety-two thousand, one hundred ninety-three".