44981640321 has 8 divisors (see below), whose sum is σ = 60649403040. Its totient is φ = 29650818912.

The previous prime is 44981640313. The next prime is 44981640391. The reversal of 44981640321 is 12304618944.

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

It is not a de Polignac number, because 44981640321 - 2³ = 44981640313 is a prime.

It is a super-3 number, since 3×44981640321³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (44981640391) 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, 84235015 + ... + 84235548.

It is an arithmetic number, because the mean of its divisors is an integer number (7581175380).

Almost surely, 2^44981640321 is an apocalyptic number.

It is an amenable number.

44981640321 is a deficient number, since it is larger than the sum of its proper divisors (15667762719).

44981640321 is a wasteful number, since it uses less digits than its factorization.

44981640321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168470655.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 44981640321 in words is "forty-four billion, nine hundred eighty-one million, six hundred forty thousand, three hundred twenty-one".