444658362678664 has 32 divisors (see below), whose sum is σ = 837606331800000. Its totient is φ = 221297210177472.

The previous prime is 444658362678619. The next prime is 444658362678667. The reversal of 444658362678664 is 466876263856444.

It is not an unprimeable number, because it can be changed into a prime (444658362678667) 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, 26859414 + ... + 40134085.

It is an arithmetic number, because the mean of its divisors is an integer number (26175197868750).

Almost surely, 2^{444658362678664} is an apocalyptic number.

It is an amenable number.

444658362678664 is a deficient number, since it is larger than the sum of its proper divisors (392947969121336).

444658362678664 is a wasteful number, since it uses less digits than its factorization.

444658362678664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66997357 (or 66997353 counting only the distinct ones).

The product of its digits is 26754416640, while the sum is 79.

The spelling of 444658362678664 in words is "four hundred forty-four trillion, six hundred fifty-eight billion, three hundred sixty-two million, six hundred seventy-eight thousand, six hundred sixty-four".