45021622453 has 2 divisors, whose sum is σ = 45021622454. Its totient is φ = 45021622452.

The previous prime is 45021622447. The next prime is 45021622507. The reversal of 45021622453 is 35422612054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42962096529 + 2059525924 = 207273^2 + 45382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45021622453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45021622403) 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, 22510811226 + 22510811227.

It is an arithmetic number, because the mean of its divisors is an integer number (22510811227).

Almost surely, 2^45021622453 is an apocalyptic number.

It is an amenable number.

45021622453 is a deficient number, since it is larger than the sum of its proper divisors (1).

45021622453 is an equidigital number, since it uses as much as digits as its factorization.

45021622453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 45021622453 in words is "forty-five billion, twenty-one million, six hundred twenty-two thousand, four hundred fifty-three".