44368428721 has 8 divisors (see below), whose sum is σ = 46716759200. Its totient is φ = 42021413280.

The previous prime is 44368428701. The next prime is 44368428757. The reversal of 44368428721 is 12782486344.

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-44368428721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44368428701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259116 + ... + 394813.

It is an arithmetic number, because the mean of its divisors is an integer number (5839594900).

Almost surely, 2^44368428721 is an apocalyptic number.

It is an amenable number.

44368428721 is a deficient number, since it is larger than the sum of its proper divisors (2348330479).

44368428721 is a wasteful number, since it uses less digits than its factorization.

44368428721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657519.

The product of its digits is 2064384, while the sum is 49.

The spelling of 44368428721 in words is "forty-four billion, three hundred sixty-eight million, four hundred twenty-eight thousand, seven hundred twenty-one".