889921331971 has 16 divisors (see below), whose sum is σ = 1049907253248. Its totient is φ = 738151149600.

The previous prime is 889921331951. The next prime is 889921332019. The reversal of 889921331971 is 179133129988.

It is a cyclic number.

It is not a de Polignac number, because 889921331971 - 2⁵ = 889921331939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (889921331951) 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, 5719521 + ... + 5873053.

It is an arithmetic number, because the mean of its divisors is an integer number (65619203328).

Almost surely, 2^889921331971 is an apocalyptic number.

889921331971 is a deficient number, since it is larger than the sum of its proper divisors (159985921277).

889921331971 is a wasteful number, since it uses less digits than its factorization.

889921331971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180282.

The product of its digits is 5878656, while the sum is 61.

The spelling of 889921331971 in words is "eight hundred eighty-nine billion, nine hundred twenty-one million, three hundred thirty-one thousand, nine hundred seventy-one".