889542742321 has 2 divisors, whose sum is σ = 889542742322. Its totient is φ = 889542742320.

The previous prime is 889542742219. The next prime is 889542742379. The reversal of 889542742321 is 123247245988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 853842529296 + 35700213025 = 924036^2 + 188945^2 .

It is a cyclic number.

It is not a de Polignac number, because 889542742321 - 2³³ = 880952807729 is a prime.

It is not a weakly prime, because it can be changed into another prime (889542742021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444771371160 + 444771371161.

It is an arithmetic number, because the mean of its divisors is an integer number (444771371161).

Almost surely, 2^889542742321 is an apocalyptic number.

It is an amenable number.

889542742321 is a deficient number, since it is larger than the sum of its proper divisors (1).

889542742321 is an equidigital number, since it uses as much as digits as its factorization.

889542742321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 55.

The spelling of 889542742321 in words is "eight hundred eighty-nine billion, five hundred forty-two million, seven hundred forty-two thousand, three hundred twenty-one".