31682021967 has 16 divisors (see below), whose sum is σ = 49697290080. Its totient is φ = 19878915456.

The previous prime is 31682021923. The next prime is 31682021971. The reversal of 31682021967 is 76912028613.

It is not a de Polignac number, because 31682021967 - 2¹⁴ = 31682005583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31682021167) 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 15 ways as a sum of consecutive naturals, for example, 34511548 + ... + 34512465.

It is an arithmetic number, because the mean of its divisors is an integer number (3106080630).

Almost surely, 2^31682021967 is an apocalyptic number.

31682021967 is a deficient number, since it is larger than the sum of its proper divisors (18015268113).

31682021967 is a wasteful number, since it uses less digits than its factorization.

31682021967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69024039 (or 69024033 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 31682021967 in words is "thirty-one billion, six hundred eighty-two million, twenty-one thousand, nine hundred sixty-seven".