85935519887 has 4 divisors (see below), whose sum is σ = 98212022736. Its totient is φ = 73659017040.

The previous prime is 85935519799. The next prime is 85935519947. The reversal of 85935519887 is 78891553958.

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

It is not a de Polignac number, because 85935519887 - 2²⁸ = 85667084431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85935539887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6138251414 + ... + 6138251427.

It is an arithmetic number, because the mean of its divisors is an integer number (24553005684).

Almost surely, 2^85935519887 is an apocalyptic number.

85935519887 is a deficient number, since it is larger than the sum of its proper divisors (12276502849).

85935519887 is a wasteful number, since it uses less digits than its factorization.

85935519887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12276502848.

The product of its digits is 108864000, while the sum is 68.

The spelling of 85935519887 in words is "eighty-five billion, nine hundred thirty-five million, five hundred nineteen thousand, eight hundred eighty-seven".