45591051889 has 2 divisors, whose sum is σ = 45591051890. Its totient is φ = 45591051888.

The previous prime is 45591051827. The next prime is 45591051943. The reversal of 45591051889 is 98815019554.

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., 35884861489 + 9706190400 = 189433^2 + 98520^2 .

It is a cyclic number.

It is not a de Polignac number, because 45591051889 - 2¹⁹ = 45590527601 is a prime.

It is not a weakly prime, because it can be changed into another prime (45591051689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22795525944 + 22795525945.

It is an arithmetic number, because the mean of its divisors is an integer number (22795525945).

Almost surely, 2^45591051889 is an apocalyptic number.

It is an amenable number.

45591051889 is a deficient number, since it is larger than the sum of its proper divisors (1).

45591051889 is an equidigital number, since it uses as much as digits as its factorization.

45591051889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592000, while the sum is 55.

The spelling of 45591051889 in words is "forty-five billion, five hundred ninety-one million, fifty-one thousand, eight hundred eighty-nine".