899141170989 has 16 divisors (see below), whose sum is σ = 1277163364032. Its totient is φ = 560705856768.

The previous prime is 899141170981. The next prime is 899141171003. The reversal of 899141170989 is 989071141998.

It is not a de Polignac number, because 899141170989 - 2³ = 899141170981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899141170981) 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, 54072114 + ... + 54088739.

It is an arithmetic number, because the mean of its divisors is an integer number (79822710252).

Almost surely, 2^899141170989 is an apocalyptic number.

It is an amenable number.

899141170989 is a deficient number, since it is larger than the sum of its proper divisors (378022193043).

899141170989 is a wasteful number, since it uses less digits than its factorization.

899141170989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108161036.

The product of its (nonzero) digits is 11757312, while the sum is 66.

The spelling of 899141170989 in words is "eight hundred ninety-nine billion, one hundred forty-one million, one hundred seventy thousand, nine hundred eighty-nine".