85899808755 has 24 divisors (see below), whose sum is σ = 149281786368. Its totient is φ = 45693605376.

The previous prime is 85899808751. The next prime is 85899808859. The reversal of 85899808755 is 55780899858.

It is not a de Polignac number, because 85899808755 - 2² = 85899808751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85899808751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2474782 + ... + 2509251.

It is an arithmetic number, because the mean of its divisors is an integer number (6220074432).

Almost surely, 2^85899808755 is an apocalyptic number.

85899808755 is a deficient number, since it is larger than the sum of its proper divisors (63381977613).

85899808755 is a wasteful number, since it uses less digits than its factorization.

85899808755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984427 (or 4984424 counting only the distinct ones).

The product of its (nonzero) digits is 290304000, while the sum is 72.

The spelling of 85899808755 in words is "eighty-five billion, eight hundred ninety-nine million, eight hundred eight thousand, seven hundred fifty-five".