2989581231 has 16 divisors (see below), whose sum is σ = 4905979904. Its totient is φ = 1576921824.

The previous prime is 2989581211. The next prime is 2989581247. The reversal of 2989581231 is 1321859892.

It is not a de Polignac number, because 2989581231 - 2⁷ = 2989581103 is a prime.

It is a super-2 number, since 2×2989581231² = 17875191873494950722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989581211) 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 15 ways as a sum of consecutive naturals, for example, 5475151 + ... + 5475696.

It is an arithmetic number, because the mean of its divisors is an integer number (306623744).

Almost surely, 2^2989581231 is an apocalyptic number.

2989581231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2989581231 is a deficient number, since it is larger than the sum of its proper divisors (1916398673).

2989581231 is a wasteful number, since it uses less digits than its factorization.

2989581231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10950870.

The product of its digits is 311040, while the sum is 48.

The square root of 2989581231 is about 54677.0631160819. The cubic root of 2989581231 is about 1440.5780265290.

The spelling of 2989581231 in words is "two billion, nine hundred eighty-nine million, five hundred eighty-one thousand, two hundred thirty-one".