85510089870 has 64 divisors (see below), whose sum is σ = 210831114816. Its totient is φ = 22180055040.

The previous prime is 85510089829. The next prime is 85510089923. The reversal of 85510089870 is 7898001558.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4827430 + ... + 4845110.

It is an arithmetic number, because the mean of its divisors is an integer number (3294236169).

Almost surely, 2^85510089870 is an apocalyptic number.

85510089870 is an abundant number, since it is smaller than the sum of its proper divisors (125321024946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85510089870 is a wasteful number, since it uses less digits than its factorization.

85510089870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22085.

The product of its (nonzero) digits is 806400, while the sum is 51.

The spelling of 85510089870 in words is "eighty-five billion, five hundred ten million, eighty-nine thousand, eight hundred seventy".