2044622542453 has 4 divisors (see below), whose sum is σ = 2044625509420. Its totient is φ = 2044619575488.

The previous prime is 2044622542451. The next prime is 2044622542477. The reversal of 2044622542453 is 3542452264402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 411601799844 + 1633020742609 = 641562^2 + 1277897^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044622542453 - 2¹ = 2044622542451 is a prime.

It is a super-2 number, since 2×2044622542453² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044622542451) 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 in 3 ways as a sum of consecutive naturals, for example, 149101 + ... + 2027677.

It is an arithmetic number, because the mean of its divisors is an integer number (511156377355).

Almost surely, 2^{2044622542453} is an apocalyptic number.

It is an amenable number.

2044622542453 is a deficient number, since it is larger than the sum of its proper divisors (2966967).

2044622542453 is a wasteful number, since it uses less digits than its factorization.

2044622542453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966966.

The product of its (nonzero) digits is 1843200, while the sum is 43.

The spelling of 2044622542453 in words is "two trillion, forty-four billion, six hundred twenty-two million, five hundred forty-two thousand, four hundred fifty-three".