85887513591 has 16 divisors (see below), whose sum is σ = 127832580480. Its totient is φ = 50842501920.

The previous prime is 85887513563. The next prime is 85887513599. The reversal of 85887513591 is 19531578858.

It is not a de Polignac number, because 85887513591 - 2⁶ = 85887513527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85887513599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30261976 + ... + 30264813.

It is an arithmetic number, because the mean of its divisors is an integer number (7989536280).

Almost surely, 2^85887513591 is an apocalyptic number.

85887513591 is a deficient number, since it is larger than the sum of its proper divisors (41945066889).

85887513591 is a wasteful number, since it uses less digits than its factorization.

85887513591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60526846.

The product of its digits is 12096000, while the sum is 60.

The spelling of 85887513591 in words is "eighty-five billion, eight hundred eighty-seven million, five hundred thirteen thousand, five hundred ninety-one".