444936497657 has 8 divisors (see below), whose sum is σ = 483462408960. Its totient is φ = 407921406480.

The previous prime is 444936497651. The next prime is 444936497711. The reversal of 444936497657 is 756794639444.

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 444936497657 - 2¹⁶ = 444936432121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444936497651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377704418 + ... + 377705595.

It is an arithmetic number, because the mean of its divisors is an integer number (60432801120).

Almost surely, 2^444936497657 is an apocalyptic number.

It is an amenable number.

444936497657 is a deficient number, since it is larger than the sum of its proper divisors (38525911303).

444936497657 is a wasteful number, since it uses less digits than its factorization.

444936497657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755410063.

The product of its digits is 548674560, while the sum is 68.

The spelling of 444936497657 in words is "four hundred forty-four billion, nine hundred thirty-six million, four hundred ninety-seven thousand, six hundred fifty-seven".