440426961768 has 16 divisors (see below), whose sum is σ = 1101067404480. Its totient is φ = 146808987248.

The previous prime is 440426961749. The next prime is 440426961883. The reversal of 440426961768 is 867169624044.

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, 9175561680 + ... + 9175561727.

It is an arithmetic number, because the mean of its divisors is an integer number (68816712780).

Almost surely, 2^440426961768 is an apocalyptic number.

It is an amenable number.

440426961768 is an abundant number, since it is smaller than the sum of its proper divisors (660640442712).

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

440426961768 is a wasteful number, since it uses less digits than its factorization.

440426961768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18351123416 (or 18351123412 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 440426961768 in words is "four hundred forty billion, four hundred twenty-six million, nine hundred sixty-one thousand, seven hundred sixty-eight".