2989381843 has 16 divisors (see below), whose sum is σ = 3554979840. Its totient is φ = 2460478176.

The previous prime is 2989381831. The next prime is 2989381859. The reversal of 2989381843 is 3481839892.

2989381843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2989381843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2989381823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68283 + ... + 103156.

It is an arithmetic number, because the mean of its divisors is an integer number (222186240).

Almost surely, 2^2989381843 is an apocalyptic number.

2989381843 is a deficient number, since it is larger than the sum of its proper divisors (565597997).

2989381843 is a wasteful number, since it uses less digits than its factorization.

2989381843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171546.

The product of its digits is 2985984, while the sum is 55.

The square root of 2989381843 is about 54675.2397617057. The cubic root of 2989381843 is about 1440.5459997070.

The spelling of 2989381843 in words is "two billion, nine hundred eighty-nine million, three hundred eighty-one thousand, eight hundred forty-three".