6444650564423 has 2 divisors, whose sum is σ = 6444650564424. Its totient is φ = 6444650564422.

The previous prime is 6444650564383. The next prime is 6444650564447. The reversal of 6444650564423 is 3244650564446.

6444650564423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6444650564423 - 2⁸ = 6444650564167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6444650504423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222325282211 + 3222325282212.

It is an arithmetic number, because the mean of its divisors is an integer number (3222325282212).

Almost surely, 2^{6444650564423} is an apocalyptic number.

6444650564423 is a deficient number, since it is larger than the sum of its proper divisors (1).

6444650564423 is an equidigital number, since it uses as much as digits as its factorization.

6444650564423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33177600, while the sum is 53.

The spelling of 6444650564423 in words is "six trillion, four hundred forty-four billion, six hundred fifty million, five hundred sixty-four thousand, four hundred twenty-three".