31688325092 has 12 divisors (see below), whose sum is σ = 56282249520. Its totient is φ = 15607682376.

The previous prime is 31688325089. The next prime is 31688325113. The reversal of 31688325092 is 29052388613.

It is an unprimeable number.

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, 59119742 + ... + 59120277.

It is an arithmetic number, because the mean of its divisors is an integer number (4690187460).

Almost surely, 2^31688325092 is an apocalyptic number.

It is an amenable number.

31688325092 is a deficient number, since it is larger than the sum of its proper divisors (24593924428).

31688325092 is a wasteful number, since it uses less digits than its factorization.

31688325092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118240090 (or 118240088 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 31688325092 in words is "thirty-one billion, six hundred eighty-eight million, three hundred twenty-five thousand, ninety-two".