44921530989 has 64 divisors (see below), whose sum is σ = 70111641600. Its totient is φ = 28371663936.

The previous prime is 44921530939. The next prime is 44921531009. The reversal of 44921530989 is 98903512944.

44921530989 is a `hidden beast` number, since 4 + 4 + 9 + 21 + 530 + 9 + 89 = 666.

It is not a de Polignac number, because 44921530989 - 2³³ = 36331596397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44921530909) 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 63 ways as a sum of consecutive naturals, for example, 31434927 + ... + 31436355.

It is an arithmetic number, because the mean of its divisors is an integer number (1095494400).

Almost surely, 2^44921530989 is an apocalyptic number.

It is an amenable number.

44921530989 is a deficient number, since it is larger than the sum of its proper divisors (25190110611).

44921530989 is a wasteful number, since it uses less digits than its factorization.

44921530989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 44921530989 in words is "forty-four billion, nine hundred twenty-one million, five hundred thirty thousand, nine hundred eighty-nine".