444422771407 has 2 divisors, whose sum is σ = 444422771408. Its totient is φ = 444422771406.

The previous prime is 444422771399. The next prime is 444422771411. The reversal of 444422771407 is 704177224444.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444422771407 - 2³ = 444422771399 is a prime.

It is a super-3 number, since 3×444422771407³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444422771417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222211385703 + 222211385704.

It is an arithmetic number, because the mean of its divisors is an integer number (222211385704).

Almost surely, 2^444422771407 is an apocalyptic number.

444422771407 is a deficient number, since it is larger than the sum of its proper divisors (1).

444422771407 is an equidigital number, since it uses as much as digits as its factorization.

444422771407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1404928, while the sum is 46.

The spelling of 444422771407 in words is "four hundred forty-four billion, four hundred twenty-two million, seven hundred seventy-one thousand, four hundred seven".