3188989481 has 2 divisors, whose sum is σ = 3188989482. Its totient is φ = 3188989480.

The previous prime is 3188989429. The next prime is 3188989483. The reversal of 3188989481 is 1849898813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2273382400 + 915607081 = 47680^2 + 30259^2 .

It is a cyclic number.

It is not a de Polignac number, because 3188989481 - 2⁶ = 3188989417 is a prime.

It is a super-2 number, since 2×3188989481² = 20339307819857298722, which contains 22 as substring.

Together with 3188989483, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3188989481.

It is not a weakly prime, because it can be changed into another prime (3188989483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1594494740 + 1594494741.

It is an arithmetic number, because the mean of its divisors is an integer number (1594494741).

Almost surely, 2^3188989481 is an apocalyptic number.

It is an amenable number.

3188989481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3188989481 is an equidigital number, since it uses as much as digits as its factorization.

3188989481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 59.

The square root of 3188989481 is about 56471.1384779871. The cubic root of 3188989481 is about 1471.9205281668.

The spelling of 3188989481 in words is "three billion, one hundred eighty-eight million, nine hundred eighty-nine thousand, four hundred eighty-one".