31728327068 has 12 divisors (see below), whose sum is σ = 55609606920. Its totient is φ = 15839867952.

The previous prime is 31728327011. The next prime is 31728327079. The reversal of 31728327068 is 86072382713.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6070958 + ... + 6076181.

It is an arithmetic number, because the mean of its divisors is an integer number (4634133910).

Almost surely, 2^31728327068 is an apocalyptic number.

It is an amenable number.

31728327068 is a deficient number, since it is larger than the sum of its proper divisors (23881279852).

31728327068 is a wasteful number, since it uses less digits than its factorization.

31728327068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12147796 (or 12147794 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 31728327068 in words is "thirty-one billion, seven hundred twenty-eight million, three hundred twenty-seven thousand, sixty-eight".