889921331939 has 2 divisors, whose sum is σ = 889921331940. Its totient is φ = 889921331938.

The previous prime is 889921331933. The next prime is 889921331951. The reversal of 889921331939 is 939133129988.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 889921331939 - 2¹² = 889921327843 is a prime.

It is not a weakly prime, because it can be changed into another prime (889921331933) 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 as a sum of consecutive naturals, namely, 444960665969 + 444960665970.

It is an arithmetic number, because the mean of its divisors is an integer number (444960665970).

Almost surely, 2^889921331939 is an apocalyptic number.

889921331939 is a deficient number, since it is larger than the sum of its proper divisors (1).

889921331939 is an equidigital number, since it uses as much as digits as its factorization.

889921331939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22674816, while the sum is 65.

The spelling of 889921331939 in words is "eight hundred eighty-nine billion, nine hundred twenty-one million, three hundred thirty-one thousand, nine hundred thirty-nine".