85869511199 has 2 divisors, whose sum is σ = 85869511200. Its totient is φ = 85869511198.

The previous prime is 85869511181. The next prime is 85869511213. The reversal of 85869511199 is 99111596858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85869511199 - 2²⁰ = 85868462623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85869561199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42934755599 + 42934755600.

It is an arithmetic number, because the mean of its divisors is an integer number (42934755600).

Almost surely, 2^85869511199 is an apocalyptic number.

85869511199 is a deficient number, since it is larger than the sum of its proper divisors (1).

85869511199 is an equidigital number, since it uses as much as digits as its factorization.

85869511199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6998400, while the sum is 62.

The spelling of 85869511199 in words is "eighty-five billion, eight hundred sixty-nine million, five hundred eleven thousand, one hundred ninety-nine".