444687380622 has 20 divisors (see below), whose sum is σ = 996429131016. Its totient is φ = 148229126820.

The previous prime is 444687380611. The next prime is 444687380623. The reversal of 444687380622 is 226083786444.

444687380622 is a `hidden beast` number, since 4 + 4 + 4 + 6 + 8 + 7 + 3 + 8 + 0 + 622 = 666.

It is a super-2 number, since 2×444687380622² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444687380623) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1372491754 + ... + 1372492077.

Almost surely, 2^444687380622 is an apocalyptic number.

444687380622 is an abundant number, since it is smaller than the sum of its proper divisors (551741750394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444687380622 is a wasteful number, since it uses less digits than its factorization.

444687380622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744983845 (or 2744983836 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 54.

The spelling of 444687380622 in words is "four hundred forty-four billion, six hundred eighty-seven million, three hundred eighty thousand, six hundred twenty-two".