85331257599 has 64 divisors (see below), whose sum is σ = 137769984000. Its totient is φ = 45892448640.

The previous prime is 85331257589. The next prime is 85331257621. The reversal of 85331257599 is 99575213358.

It is not a de Polignac number, because 85331257599 - 2⁸ = 85331257343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85331257589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47117404 + ... + 47119214.

It is an arithmetic number, because the mean of its divisors is an integer number (2152656000).

Almost surely, 2^85331257599 is an apocalyptic number.

85331257599 is a deficient number, since it is larger than the sum of its proper divisors (52438726401).

85331257599 is a wasteful number, since it uses less digits than its factorization.

85331257599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548.

The product of its digits is 10206000, while the sum is 57.

The spelling of 85331257599 in words is "eighty-five billion, three hundred thirty-one million, two hundred fifty-seven thousand, five hundred ninety-nine".