5444343891 has 72 divisors (see below), whose sum is σ = 9742608720. Its totient is φ = 2910974976.

The previous prime is 5444343859. The next prime is 5444343901. The reversal of 5444343891 is 1983434445.

It is not a de Polignac number, because 5444343891 - 2⁵ = 5444343859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5444347891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1339935 + ... + 1343991.

It is an arithmetic number, because the mean of its divisors is an integer number (135314010).

Almost surely, 2^5444343891 is an apocalyptic number.

5444343891 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5444343891 is a deficient number, since it is larger than the sum of its proper divisors (4298264829).

5444343891 is a wasteful number, since it uses less digits than its factorization.

5444343891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273 (or 4263 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 5444343891 is about 73785.7973528781. The cubic root of 5444343891 is about 1759.1998656139.

The spelling of 5444343891 in words is "five billion, four hundred forty-four million, three hundred forty-three thousand, eight hundred ninety-one".