444200406424639 has 2 divisors, whose sum is σ = 444200406424640. Its totient is φ = 444200406424638.

The previous prime is 444200406424601. The next prime is 444200406424673. The reversal of 444200406424639 is 936424604002444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444200406424639 - 2⁴³ = 435404313402431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444200406424039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222100203212319 + 222100203212320.

It is an arithmetic number, because the mean of its divisors is an integer number (222100203212320).

Almost surely, 2^{444200406424639} is an apocalyptic number.

444200406424639 is a deficient number, since it is larger than the sum of its proper divisors (1).

444200406424639 is an equidigital number, since it uses as much as digits as its factorization.

444200406424639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15925248, while the sum is 52.

The spelling of 444200406424639 in words is "four hundred forty-four trillion, two hundred billion, four hundred six million, four hundred twenty-four thousand, six hundred thirty-nine".