8132538881 has 4 divisors (see below), whose sum is σ = 8486127552. Its totient is φ = 7778950212.

The previous prime is 8132538857. The next prime is 8132538899. The reversal of 8132538881 is 1888352318.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8132538881 - 2¹⁰ = 8132537857 is a prime.

It is a super-2 number, since 2×8132538881² (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 (8132738881) 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, 176794301 + ... + 176794346.

It is an arithmetic number, because the mean of its divisors is an integer number (2121531888).

Almost surely, 2^8132538881 is an apocalyptic number.

It is an amenable number.

8132538881 is a deficient number, since it is larger than the sum of its proper divisors (353588671).

8132538881 is a wasteful number, since it uses less digits than its factorization.

8132538881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353588670.

The product of its digits is 368640, while the sum is 47.

The square root of 8132538881 is about 90180.5903784179. The cubic root of 8132538881 is about 2010.9844670444.

The spelling of 8132538881 in words is "eight billion, one hundred thirty-two million, five hundred thirty-eight thousand, eight hundred eighty-one".