889161798723 has 32 divisors (see below), whose sum is σ = 1370461213440. Its totient is φ = 506795304960.

The previous prime is 889161798713. The next prime is 889161798737. The reversal of 889161798723 is 327897161988.

It is not a de Polignac number, because 889161798723 - 2⁹ = 889161798211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (889161798713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116608 + ... + 1338626.

It is an arithmetic number, because the mean of its divisors is an integer number (42826912920).

Almost surely, 2^889161798723 is an apocalyptic number.

889161798723 is a deficient number, since it is larger than the sum of its proper divisors (481299414717).

889161798723 is a wasteful number, since it uses less digits than its factorization.

889161798723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223347.

The product of its digits is 73156608, while the sum is 69.

The spelling of 889161798723 in words is "eight hundred eighty-nine billion, one hundred sixty-one million, seven hundred ninety-eight thousand, seven hundred twenty-three".