201044444389 has 2 divisors, whose sum is σ = 201044444390. Its totient is φ = 201044444388.

The previous prime is 201044444333. The next prime is 201044444401. The reversal of 201044444389 is 983444440102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170614433025 + 30430011364 = 413055^2 + 174442^2 .

It is a cyclic number.

It is not a de Polignac number, because 201044444389 - 2¹⁵ = 201044411621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201044444329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100522222194 + 100522222195.

It is an arithmetic number, because the mean of its divisors is an integer number (100522222195).

Almost surely, 2^201044444389 is an apocalyptic number.

It is an amenable number.

201044444389 is a deficient number, since it is larger than the sum of its proper divisors (1).

201044444389 is an equidigital number, since it uses as much as digits as its factorization.

201044444389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 201044444389 in words is "two hundred one billion, forty-four million, four hundred forty-four thousand, three hundred eighty-nine".