44523454621 has 2 divisors, whose sum is σ = 44523454622. Its totient is φ = 44523454620.

The previous prime is 44523454603. The next prime is 44523454687. The reversal of 44523454621 is 12645432544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43760037721 + 763416900 = 209189^2 + 27630^2 .

It is a cyclic number.

It is not a de Polignac number, because 44523454621 - 2⁵ = 44523454589 is a prime.

It is a super-2 number, since 2×44523454621² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44523454691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22261727310 + 22261727311.

It is an arithmetic number, because the mean of its divisors is an integer number (22261727311).

Almost surely, 2^44523454621 is an apocalyptic number.

It is an amenable number.

44523454621 is a deficient number, since it is larger than the sum of its proper divisors (1).

44523454621 is an equidigital number, since it uses as much as digits as its factorization.

44523454621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460800, while the sum is 40.

The spelling of 44523454621 in words is "forty-four billion, five hundred twenty-three million, four hundred fifty-four thousand, six hundred twenty-one".