444444401907 has 24 divisors (see below), whose sum is σ = 700360427520. Its totient is φ = 269351092080.

The previous prime is 444444401773. The next prime is 444444401969. The reversal of 444444401907 is 709104444444.

It is not a de Polignac number, because 444444401907 - 2¹² = 444444397811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444444408907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3887718 + ... + 4000404.

It is an arithmetic number, because the mean of its divisors is an integer number (29181684480).

Almost surely, 2^444444401907 is an apocalyptic number.

444444401907 is a deficient number, since it is larger than the sum of its proper divisors (255916025613).

444444401907 is a wasteful number, since it uses less digits than its factorization.

444444401907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152543 (or 152540 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 444444401907 in words is "four hundred forty-four billion, four hundred forty-four million, four hundred one thousand, nine hundred seven".