85899316258925 has 12 divisors (see below), whose sum is σ = 114708625404660. Its totient is φ = 63433341237120.

The previous prime is 85899316258867. The next prime is 85899316258997. The reversal of 85899316258925 is 52985261399858.

It can be written as a sum of positive squares in 6 ways, for example, as 20776950214276 + 65122366044649 = 4558174^2 + 8069843^2 .

It is not a de Polignac number, because 85899316258925 - 2¹⁶ = 85899316193389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85899316258925.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132152793920 + ... + 132152794569.

It is an arithmetic number, because the mean of its divisors is an integer number (9559052117055).

Almost surely, 2^{85899316258925} is an apocalyptic number.

It is an amenable number.

85899316258925 is a deficient number, since it is larger than the sum of its proper divisors (28809309145735).

85899316258925 is a wasteful number, since it uses less digits than its factorization.

85899316258925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264305588512 (or 264305588507 counting only the distinct ones).

The product of its digits is 3359232000, while the sum is 80.

The spelling of 85899316258925 in words is "eighty-five trillion, eight hundred ninety-nine billion, three hundred sixteen million, two hundred fifty-eight thousand, nine hundred twenty-five".