44981401921 has 8 divisors (see below), whose sum is σ = 47421005184. Its totient is φ = 42582122880.

The previous prime is 44981401919. The next prime is 44981401951. The reversal of 44981401921 is 12910418944.

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

It is a cyclic number.

It is not a de Polignac number, because 44981401921 - 2¹ = 44981401919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44981401951) 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, 10078765 + ... + 10083226.

It is an arithmetic number, because the mean of its divisors is an integer number (5927625648).

Almost surely, 2^44981401921 is an apocalyptic number.

It is an amenable number.

44981401921 is a deficient number, since it is larger than the sum of its proper divisors (2439603263).

44981401921 is a wasteful number, since it uses less digits than its factorization.

44981401921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20162111.

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 44981401921 in words is "forty-four billion, nine hundred eighty-one million, four hundred one thousand, nine hundred twenty-one".