444557613722 has 8 divisors (see below), whose sum is σ = 706062092436. Its totient is φ = 209203582912.

The previous prime is 444557613683. The next prime is 444557613749. The reversal of 444557613722 is 227316755444.

It can be written as a sum of positive squares in 2 ways, for example, as 433399705561 + 11157908161 = 658331^2 + 105631^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6537611933 + ... + 6537612000.

Almost surely, 2^444557613722 is an apocalyptic number.

444557613722 is a deficient number, since it is larger than the sum of its proper divisors (261504478714).

444557613722 is a wasteful number, since it uses less digits than its factorization.

444557613722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13075223952.

The product of its digits is 5644800, while the sum is 50.

The spelling of 444557613722 in words is "four hundred forty-four billion, five hundred fifty-seven million, six hundred thirteen thousand, seven hundred twenty-two".