85889871970 has 64 divisors (see below), whose sum is σ = 190899244800. Its totient is φ = 27715704576.

The previous prime is 85889871959. The next prime is 85889871979. The reversal of 85889871970 is 7917898858.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is a self number, because there is not a number n which added to its sum of digits gives 85889871970.

It is not an unprimeable number, because it can be changed into a prime (85889871979) 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 31 ways as a sum of consecutive naturals, for example, 678184 + ... + 794803.

It is an arithmetic number, because the mean of its divisors is an integer number (2982800700).

Almost surely, 2^85889871970 is an apocalyptic number.

85889871970 is an abundant number, since it is smaller than the sum of its proper divisors (105009372830).

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

85889871970 is a wasteful number, since it uses less digits than its factorization.

85889871970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473032 (or 1473018 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 70.

The spelling of 85889871970 in words is "eighty-five billion, eight hundred eighty-nine million, eight hundred seventy-one thousand, nine hundred seventy".