8232189881 has 4 divisors (see below), whose sum is σ = 8232422772. Its totient is φ = 8231956992.

The previous prime is 8232189863. The next prime is 8232189943. The reversal of 8232189881 is 1889812328.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6546266281 + 1685923600 = 80909^2 + 41060^2 .

It is a cyclic number.

It is not a de Polignac number, because 8232189881 - 2³⁰ = 7158448057 is a prime.

It is a super-2 number, since 2×8232189881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8232189811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51260 + ... + 138173.

It is an arithmetic number, because the mean of its divisors is an integer number (2058105693).

Almost surely, 2^8232189881 is an apocalyptic number.

It is an amenable number.

8232189881 is a deficient number, since it is larger than the sum of its proper divisors (232891).

8232189881 is a wasteful number, since it uses less digits than its factorization.

8232189881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232890.

The product of its digits is 442368, while the sum is 50.

The square root of 8232189881 is about 90731.4161743329. The cubic root of 8232189881 is about 2019.1649230157.

The spelling of 8232189881 in words is "eight billion, two hundred thirty-two million, one hundred eighty-nine thousand, eight hundred eighty-one".