45173909512913 has 2 divisors, whose sum is σ = 45173909512914. Its totient is φ = 45173909512912.

The previous prime is 45173909512859. The next prime is 45173909512933. The reversal of 45173909512913 is 31921590937154.

It is a happy number.

45173909512913 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., 32847020237824 + 12326889275089 = 5731232^2 + 3510967^2 .

It is a cyclic number.

It is not a de Polignac number, because 45173909512913 - 2³² = 45169614545617 is a prime.

It is not a weakly prime, because it can be changed into another prime (45173909512933) 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, 22586954756456 + 22586954756457.

It is an arithmetic number, because the mean of its divisors is an integer number (22586954756457).

Almost surely, 2^{45173909512913} is an apocalyptic number.

It is an amenable number.

45173909512913 is a deficient number, since it is larger than the sum of its proper divisors (1).

45173909512913 is an equidigital number, since it uses as much as digits as its factorization.

45173909512913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9185400, while the sum is 59.

The spelling of 45173909512913 in words is "forty-five trillion, one hundred seventy-three billion, nine hundred nine million, five hundred twelve thousand, nine hundred thirteen".