85015358959 has 4 divisors (see below), whose sum is σ = 85017569040. Its totient is φ = 85013148880.

The previous prime is 85015358947. The next prime is 85015358999. The reversal of 85015358959 is 95985351058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85015358959 - 2⁹ = 85015358447 is a prime.

It is a super-2 number, since 2×85015358959² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85015358999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046299 + ... + 1124620.

It is an arithmetic number, because the mean of its divisors is an integer number (21254392260).

Almost surely, 2^85015358959 is an apocalyptic number.

85015358959 is a deficient number, since it is larger than the sum of its proper divisors (2210081).

85015358959 is a wasteful number, since it uses less digits than its factorization.

85015358959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210080.

The product of its (nonzero) digits is 9720000, while the sum is 58.

The spelling of 85015358959 in words is "eighty-five billion, fifteen million, three hundred fifty-eight thousand, nine hundred fifty-nine".