444958394387 has 16 divisors (see below), whose sum is σ = 493273740960. Its totient is φ = 398706872832.

The previous prime is 444958394351. The next prime is 444958394393. The reversal of 444958394387 is 783493859444.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 444958394387 - 2⁶ = 444958394323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444958394347) 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, 859937 + ... + 1276482.

It is an arithmetic number, because the mean of its divisors is an integer number (30829608810).

Almost surely, 2^444958394387 is an apocalyptic number.

444958394387 is a deficient number, since it is larger than the sum of its proper divisors (48315346573).

444958394387 is a wasteful number, since it uses less digits than its factorization.

444958394387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136902.

The product of its digits is 418037760, while the sum is 68.

The spelling of 444958394387 in words is "four hundred forty-four billion, nine hundred fifty-eight million, three hundred ninety-four thousand, three hundred eighty-seven".