889842147943 has 16 divisors (see below), whose sum is σ = 1087060617216. Its totient is φ = 711765869760.

The previous prime is 889842147923. The next prime is 889842147977. The reversal of 889842147943 is 349741248988.

It is a cyclic number.

It is not a de Polignac number, because 889842147943 - 2¹⁷ = 889842016871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889842147923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67395471 + ... + 67408672.

It is an arithmetic number, because the mean of its divisors is an integer number (67941288576).

Almost surely, 2^889842147943 is an apocalyptic number.

889842147943 is a deficient number, since it is larger than the sum of its proper divisors (197218469273).

889842147943 is a wasteful number, since it uses less digits than its factorization.

889842147943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134804214.

The product of its digits is 111476736, while the sum is 67.

The spelling of 889842147943 in words is "eight hundred eighty-nine billion, eight hundred forty-two million, one hundred forty-seven thousand, nine hundred forty-three".