44404726646 has 32 divisors (see below), whose sum is σ = 77761797120. Its totient is φ = 18620951616.

The previous prime is 44404726609. The next prime is 44404726651. The reversal of 44404726646 is 64662740444.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 44404726646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4001021 + ... + 4012103.

It is an arithmetic number, because the mean of its divisors is an integer number (2430056160).

Almost surely, 2^44404726646 is an apocalyptic number.

44404726646 is a deficient number, since it is larger than the sum of its proper divisors (33357070474).

44404726646 is a wasteful number, since it uses less digits than its factorization.

44404726646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17228.

The product of its (nonzero) digits is 3096576, while the sum is 47.

The spelling of 44404726646 in words is "forty-four billion, four hundred four million, seven hundred twenty-six thousand, six hundred forty-six".