189086280044 has 24 divisors (see below), whose sum is σ = 348545749440. Its totient is φ = 89508320784.

The previous prime is 189086280041. The next prime is 189086280091. The reversal of 189086280044 is 440082680981.

It is a junction number, because it is equal to n+sod(n) for n = 189086279974 and 189086280001.

It is not an unprimeable number, because it can be changed into a prime (189086280041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701054 + ... + 932549.

It is an arithmetic number, because the mean of its divisors is an integer number (14522739560).

Almost surely, 2^189086280044 is an apocalyptic number.

It is an amenable number.

189086280044 is a deficient number, since it is larger than the sum of its proper divisors (159459469396).

189086280044 is a wasteful number, since it uses less digits than its factorization.

189086280044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635149 (or 1635147 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 50.

The spelling of 189086280044 in words is "one hundred eighty-nine billion, eighty-six million, two hundred eighty thousand, forty-four".