45440244204457 has 2 divisors, whose sum is σ = 45440244204458. Its totient is φ = 45440244204456.

The previous prime is 45440244204451. The next prime is 45440244204461. The reversal of 45440244204457 is 75440244204454.

It is a happy number.

45440244204457 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., 42858874995561 + 2581369208896 = 6546669^2 + 1606664^2 .

It is a cyclic number.

It is not a de Polignac number, because 45440244204457 - 2³ = 45440244204449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45440244204457.

It is not a weakly prime, because it can be changed into another prime (45440244204451) 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, 22720122102228 + 22720122102229.

It is an arithmetic number, because the mean of its divisors is an integer number (22720122102229).

Almost surely, 2^{45440244204457} is an apocalyptic number.

It is an amenable number.

45440244204457 is a deficient number, since it is larger than the sum of its proper divisors (1).

45440244204457 is an equidigital number, since it uses as much as digits as its factorization.

45440244204457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11468800, while the sum is 49.

The spelling of 45440244204457 in words is "forty-five trillion, four hundred forty billion, two hundred forty-four million, two hundred four thousand, four hundred fifty-seven".