27731830382 has 4 divisors (see below), whose sum is σ = 41597745576. Its totient is φ = 13865915190.

The previous prime is 27731830381. The next prime is 27731830417. The reversal of 27731830382 is 28303813772.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27731830381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6932957594 + ... + 6932957597.

It is an arithmetic number, because the mean of its divisors is an integer number (10399436394).

Almost surely, 2^27731830382 is an apocalyptic number.

27731830382 is a deficient number, since it is larger than the sum of its proper divisors (13865915194).

27731830382 is a wasteful number, since it uses less digits than its factorization.

27731830382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13865915193.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 27731830382 in words is "twenty-seven billion, seven hundred thirty-one million, eight hundred thirty thousand, three hundred eighty-two".