44921130921 has 24 divisors (see below), whose sum is σ = 66688811904. Its totient is φ = 29123508960.

The previous prime is 44921130901. The next prime is 44921130929. The reversal of 44921130921 is 12903112944.

It is not a de Polignac number, because 44921130921 - 2⁵ = 44921130889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44921130929) 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 23 ways as a sum of consecutive naturals, for example, 271795 + ... + 404616.

It is an arithmetic number, because the mean of its divisors is an integer number (2778700496).

Almost surely, 2^44921130921 is an apocalyptic number.

It is an amenable number.

44921130921 is a deficient number, since it is larger than the sum of its proper divisors (21767680983).

44921130921 is a wasteful number, since it uses less digits than its factorization.

44921130921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676621 (or 676618 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 44921130921 in words is "forty-four billion, nine hundred twenty-one million, one hundred thirty thousand, nine hundred twenty-one".