31988472683 has 8 divisors (see below), whose sum is σ = 32236458240. Its totient is φ = 31740742440.

The previous prime is 31988472679. The next prime is 31988472709. The reversal of 31988472683 is 38627488913.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31988472683 - 2² = 31988472679 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31988472623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191666 + ... + 317352.

It is an arithmetic number, because the mean of its divisors is an integer number (4029557280).

Almost surely, 2^31988472683 is an apocalyptic number.

31988472683 is a deficient number, since it is larger than the sum of its proper divisors (247985557).

31988472683 is a wasteful number, since it uses less digits than its factorization.

31988472683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127657.

The product of its digits is 13934592, while the sum is 59.

The spelling of 31988472683 in words is "thirty-one billion, nine hundred eighty-eight million, four hundred seventy-two thousand, six hundred eighty-three".