444678128636 has 12 divisors (see below), whose sum is σ = 889356257328. Its totient is φ = 190576340832.

The previous prime is 444678128633. The next prime is 444678128639. The reversal of 444678128636 is 636821876444.

It is an interprime number because it is at equal distance from previous prime (444678128633) and next prime (444678128639).

444678128636 is an admirable number.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444678128633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7940680841 + ... + 7940680896.

It is an arithmetic number, because the mean of its divisors is an integer number (74113021444).

Almost surely, 2^444678128636 is an apocalyptic number.

It is an amenable number.

444678128636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

444678128636 is a wasteful number, since it uses less digits than its factorization.

444678128636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15881361748 (or 15881361746 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 59.

The spelling of 444678128636 in words is "four hundred forty-four billion, six hundred seventy-eight million, one hundred twenty-eight thousand, six hundred thirty-six".