889647920044 has 18 divisors (see below), whose sum is σ = 1685856488820. Its totient is φ = 410606732016.

The previous prime is 889647920033. The next prime is 889647920087. The reversal of 889647920044 is 440029746988.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 658022934 + ... + 658024285.

Almost surely, 2^889647920044 is an apocalyptic number.

It is an amenable number.

889647920044 is a deficient number, since it is larger than the sum of its proper divisors (796208568776).

889647920044 is a wasteful number, since it uses less digits than its factorization.

889647920044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316047249 (or 1316047234 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 61.

It can be divided in two parts, 88964 and 7920044, that added together give a palindrome (8009008).

The spelling of 889647920044 in words is "eight hundred eighty-nine billion, six hundred forty-seven million, nine hundred twenty thousand, forty-four".