889364049421 has 2 divisors, whose sum is σ = 889364049422. Its totient is φ = 889364049420.

The previous prime is 889364049341. The next prime is 889364049433. The reversal of 889364049421 is 124940463988.

889364049421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 785502873796 + 103861175625 = 886286^2 + 322275^2 .

It is a cyclic number.

It is not a de Polignac number, because 889364049421 - 2¹¹ = 889364047373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (889364049461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444682024710 + 444682024711.

It is an arithmetic number, because the mean of its divisors is an integer number (444682024711).

Almost surely, 2^889364049421 is an apocalyptic number.

It is an amenable number.

889364049421 is a deficient number, since it is larger than the sum of its proper divisors (1).

889364049421 is an equidigital number, since it uses as much as digits as its factorization.

889364049421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11943936, while the sum is 58.

The spelling of 889364049421 in words is "eight hundred eighty-nine billion, three hundred sixty-four million, forty-nine thousand, four hundred twenty-one".