44391882921 has 8 divisors (see below), whose sum is σ = 59197037760. Its totient is φ = 29590658352.

The previous prime is 44391882919. The next prime is 44391882923. The reversal of 44391882921 is 12928819344.

44391882921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (44391882919) and next prime (44391882923).

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

It is not a de Polignac number, because 44391882921 - 2¹ = 44391882919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44391882923) 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, 956110 + ... + 1001463.

It is an arithmetic number, because the mean of its divisors is an integer number (7399629720).

Almost surely, 2^44391882921 is an apocalyptic number.

It is an amenable number.

44391882921 is a deficient number, since it is larger than the sum of its proper divisors (14805154839).

44391882921 is a wasteful number, since it uses less digits than its factorization.

44391882921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965135.

The product of its digits is 995328, while the sum is 51.

The spelling of 44391882921 in words is "forty-four billion, three hundred ninety-one million, eight hundred eighty-two thousand, nine hundred twenty-one".