45441043889 has 2 divisors, whose sum is σ = 45441043890. Its totient is φ = 45441043888.

The previous prime is 45441043883. The next prime is 45441043897. The reversal of 45441043889 is 98834014454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42691824400 + 2749219489 = 206620^2 + 52433^2 .

It is a cyclic number.

It is not a de Polignac number, because 45441043889 - 2⁸ = 45441043633 is a prime.

It is not a weakly prime, because it can be changed into another prime (45441043883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22720521944 + 22720521945.

It is an arithmetic number, because the mean of its divisors is an integer number (22720521945).

Almost surely, 2^45441043889 is an apocalyptic number.

It is an amenable number.

45441043889 is a deficient number, since it is larger than the sum of its proper divisors (1).

45441043889 is an equidigital number, since it uses as much as digits as its factorization.

45441043889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 45441043889 in words is "forty-five billion, four hundred forty-one million, forty-three thousand, eight hundred eighty-nine".