2644523454541 has 4 divisors (see below), whose sum is σ = 2729830662784. Its totient is φ = 2559216246300.

The previous prime is 2644523454481. The next prime is 2644523454577. The reversal of 2644523454541 is 1454543254462.

2644523454541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2644523454541 - 2¹⁹ = 2644522930253 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 (2644523454581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42653604075 + ... + 42653604136.

It is an arithmetic number, because the mean of its divisors is an integer number (682457665696).

Almost surely, 2^{2644523454541} is an apocalyptic number.

It is an amenable number.

2644523454541 is a deficient number, since it is larger than the sum of its proper divisors (85307208243).

2644523454541 is an equidigital number, since it uses as much as digits as its factorization.

2644523454541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85307208242.

The product of its digits is 9216000, while the sum is 49.

The spelling of 2644523454541 in words is "two trillion, six hundred forty-four billion, five hundred twenty-three million, four hundred fifty-four thousand, five hundred forty-one".