444564557673423 has 16 divisors (see below), whose sum is σ = 646681165036416. Its totient is φ = 269415645081440.

The previous prime is 444564557673407. The next prime is 444564557673479. The reversal of 444564557673423 is 324376755465444.

It is not a de Polignac number, because 444564557673423 - 2⁴ = 444564557673407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444564557273423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434986236 + ... + 436007057.

It is an arithmetic number, because the mean of its divisors is an integer number (40417572814776).

Almost surely, 2^{444564557673423} is an apocalyptic number.

444564557673423 is a deficient number, since it is larger than the sum of its proper divisors (202116607362993).

444564557673423 is a wasteful number, since it uses less digits than its factorization.

444564557673423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871008774.

The product of its digits is 4064256000, while the sum is 69.

The spelling of 444564557673423 in words is "four hundred forty-four trillion, five hundred sixty-four billion, five hundred fifty-seven million, six hundred seventy-three thousand, four hundred twenty-three".