44503849891 has 16 divisors (see below), whose sum is σ = 51201884160. Its totient is φ = 38401395840.

The previous prime is 44503849889. The next prime is 44503849913. The reversal of 44503849891 is 19894830544.

It is a cyclic number.

It is not a de Polignac number, because 44503849891 - 2¹ = 44503849889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44503849391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2212291 + ... + 2232316.

It is an arithmetic number, because the mean of its divisors is an integer number (3200117760).

Almost surely, 2^44503849891 is an apocalyptic number.

44503849891 is a deficient number, since it is larger than the sum of its proper divisors (6698034269).

44503849891 is a wasteful number, since it uses less digits than its factorization.

44503849891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444674.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 44503849891 in words is "forty-four billion, five hundred three million, eight hundred forty-nine thousand, eight hundred ninety-one".