444593913139 has 8 divisors (see below), whose sum is σ = 471142415520. Its totient is φ = 418793256000.

The previous prime is 444593913089. The next prime is 444593913143. The reversal of 444593913139 is 931319395444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444593913139 - 2¹⁵ = 444593880371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444593913139.

It is not an unprimeable number, because it can be changed into a prime (444593913199) 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 in 7 ways as a sum of consecutive naturals, for example, 186960087 + ... + 186962464.

It is an arithmetic number, because the mean of its divisors is an integer number (58892801940).

Almost surely, 2^444593913139 is an apocalyptic number.

444593913139 is a deficient number, since it is larger than the sum of its proper divisors (26548502381).

444593913139 is a wasteful number, since it uses less digits than its factorization.

444593913139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373922621.

The product of its digits is 6298560, while the sum is 55.

The spelling of 444593913139 in words is "four hundred forty-four billion, five hundred ninety-three million, nine hundred thirteen thousand, one hundred thirty-nine".