444091689580 has 384 divisors, whose sum is σ = 1239249715200. Its totient is φ = 129502540800.

The previous prime is 444091689553. The next prime is 444091689581. The reversal of 444091689580 is 85986190444.

It is not an unprimeable number, because it can be changed into a prime (444091689581) 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 127 ways as a sum of consecutive naturals, for example, 1279802967 + ... + 1279803313.

It is an arithmetic number, because the mean of its divisors is an integer number (3227212800).

Almost surely, 2^444091689580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444091689580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619624857600).

444091689580 is an abundant number, since it is smaller than the sum of its proper divisors (795158025620).

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

444091689580 is a wasteful number, since it uses less digits than its factorization.

444091689580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 58.

The spelling of 444091689580 in words is "four hundred forty-four billion, ninety-one million, six hundred eighty-nine thousand, five hundred eighty".