31684482679 has 4 divisors (see below), whose sum is σ = 32085552160. Its totient is φ = 31283413200.

The previous prime is 31684482673. The next prime is 31684482719. The reversal of 31684482679 is 97628448613.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31684482679 - 2¹⁹ = 31683958391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31684482673) 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 in 3 ways as a sum of consecutive naturals, for example, 200534622 + ... + 200534779.

It is an arithmetic number, because the mean of its divisors is an integer number (8021388040).

Almost surely, 2^31684482679 is an apocalyptic number.

31684482679 is a deficient number, since it is larger than the sum of its proper divisors (401069481).

31684482679 is an equidigital number, since it uses as much as digits as its factorization.

31684482679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401069480.

The product of its digits is 13934592, while the sum is 58.

The spelling of 31684482679 in words is "thirty-one billion, six hundred eighty-four million, four hundred eighty-two thousand, six hundred seventy-nine".