31678882652 has 24 divisors (see below), whose sum is σ = 57857515296. Its totient is φ = 15148381248.

The previous prime is 31678882639. The next prime is 31678882657. The reversal of 31678882652 is 25628887613.

It is a happy number.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31678882657) 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 7 ways as a sum of consecutive naturals, for example, 651158 + ... + 698114.

It is an arithmetic number, because the mean of its divisors is an integer number (2410729804).

Almost surely, 2^31678882652 is an apocalyptic number.

It is an amenable number.

31678882652 is a deficient number, since it is larger than the sum of its proper divisors (26178632644).

31678882652 is a wasteful number, since it uses less digits than its factorization.

31678882652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54317 (or 54315 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 56.

The spelling of 31678882652 in words is "thirty-one billion, six hundred seventy-eight million, eight hundred eighty-two thousand, six hundred fifty-two".