899999989999998 has 64 divisors (see below), whose sum is σ = 1933245720944640. Its totient is φ = 278589993276672.

The previous prime is 899999989999963. The next prime is 899999990000017.

899999989999998 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190514718 + ... + 195181601.

It is an arithmetic number, because the mean of its divisors is an integer number (30206964389760).

Almost surely, 2^{899999989999998} is an apocalyptic number.

899999989999998 is an abundant number, since it is smaller than the sum of its proper divisors (1033245730944642).

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

899999989999998 is a wasteful number, since it uses less digits than its factorization.

899999989999998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385696841.

The product of its digits is 144603922678272, while the sum is 132.

The spelling of 899999989999998 in words is "eight hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred eighty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".