44640785253376 has 99 divisors (see below), whose sum is σ = 96636487883583. Its totient is φ = 20602156523520.

The previous prime is 44640785253373. The next prime is 44640785253377. The reversal of 44640785253376 is 67335258704644.

The square root of 44640785253376 is 6681376.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 34557467673600 + 10083317579776 = 5878560^2 + 3175424^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44640785253373) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2779444386 + ... + 2779460446.

Almost surely, 2^{44640785253376} is an apocalyptic number.

44640785253376 is the 6681376-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44640785253376

44640785253376 is an abundant number, since it is smaller than the sum of its proper divisors (51995702630207).

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

44640785253376 is an frugal number, since it uses more digits than its factorization.

44640785253376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32168 (or 16076 counting only the distinct ones).

The product of its (nonzero) digits is 406425600, while the sum is 64.

44640785253376 divided by its sum of digits (64) gives a square (697512269584 = 835172²).

The spelling of 44640785253376 in words is "forty-four trillion, six hundred forty billion, seven hundred eighty-five million, two hundred fifty-three thousand, three hundred seventy-six".