32326137891 has 12 divisors (see below), whose sum is σ = 49439975832. Its totient is φ = 20283066816.

The previous prime is 32326137889. The next prime is 32326137917. The reversal of 32326137891 is 19873162323.

32326137891 is a `hidden beast` number, since 3 + 23 + 2 + 613 + 7 + 8 + 9 + 1 = 666.

It is not a de Polignac number, because 32326137891 - 2¹ = 32326137889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32326137491) 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 11 ways as a sum of consecutive naturals, for example, 105640821 + ... + 105641126.

It is an arithmetic number, because the mean of its divisors is an integer number (4119997986).

Almost surely, 2^32326137891 is an apocalyptic number.

32326137891 is a deficient number, since it is larger than the sum of its proper divisors (17113837941).

32326137891 is a wasteful number, since it uses less digits than its factorization.

32326137891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211281970 (or 211281967 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The spelling of 32326137891 in words is "thirty-two billion, three hundred twenty-six million, one hundred thirty-seven thousand, eight hundred ninety-one".