44500453621 has 4 divisors (see below), whose sum is σ = 47923565452. Its totient is φ = 41077341792.

The previous prime is 44500453619. The next prime is 44500453637. The reversal of 44500453621 is 12635400544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23559180100 + 20941273521 = 153490^2 + 144711^2 .

It is a cyclic number.

It is not a de Polignac number, because 44500453621 - 2¹ = 44500453619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44500453601) 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 in 3 ways as a sum of consecutive naturals, for example, 1711555896 + ... + 1711555921.

It is an arithmetic number, because the mean of its divisors is an integer number (11980891363).

Almost surely, 2^44500453621 is an apocalyptic number.

It is an amenable number.

44500453621 is a deficient number, since it is larger than the sum of its proper divisors (3423111831).

44500453621 is a wasteful number, since it uses less digits than its factorization.

44500453621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423111830.

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

The spelling of 44500453621 in words is "forty-four billion, five hundred million, four hundred fifty-three thousand, six hundred twenty-one".