6331381532 has 18 divisors (see below), whose sum is σ = 12888884232. Its totient is φ = 2713449144.

The previous prime is 6331381517. The next prime is 6331381541. The reversal of 6331381532 is 2351831336.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6331381492 and 6331381501.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 16151288 + ... + 16151679.

It is an arithmetic number, because the mean of its divisors is an integer number (716049124).

Almost surely, 2^6331381532 is an apocalyptic number.

It is an amenable number.

6331381532 is an abundant number, since it is smaller than the sum of its proper divisors (6557502700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6331381532 is a wasteful number, since it uses less digits than its factorization.

6331381532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32302985 (or 32302976 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 6331381532 is about 79569.9788362420. The cubic root of 6331381532 is about 1849.9762872052.

The spelling of 6331381532 in words is "six billion, three hundred thirty-one million, three hundred eighty-one thousand, five hundred thirty-two".