44243644421 has 8 divisors (see below), whose sum is σ = 44282120064. Its totient is φ = 44205190560.

The previous prime is 44243644411. The next prime is 44243644427. The reversal of 44243644421 is 12444634244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44243644421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44243644427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9247796 + ... + 9252578.

It is an arithmetic number, because the mean of its divisors is an integer number (5535265008).

Almost surely, 2^44243644421 is an apocalyptic number.

It is an amenable number.

44243644421 is a deficient number, since it is larger than the sum of its proper divisors (38475643).

44243644421 is a wasteful number, since it uses less digits than its factorization.

44243644421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10891.

The product of its digits is 294912, while the sum is 38.

The spelling of 44243644421 in words is "forty-four billion, two hundred forty-three million, six hundred forty-four thousand, four hundred twenty-one".