31664470382 has 4 divisors (see below), whose sum is σ = 47496705576. Its totient is φ = 15832235190.

The previous prime is 31664470373. The next prime is 31664470391. The reversal of 31664470382 is 28307446613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28307446613 = 5881 ⋅4813373.

It is an interprime number because it is at equal distance from previous prime (31664470373) and next prime (31664470391).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7916117594 + ... + 7916117597.

It is an arithmetic number, because the mean of its divisors is an integer number (11874176394).

Almost surely, 2^31664470382 is an apocalyptic number.

31664470382 is a deficient number, since it is larger than the sum of its proper divisors (15832235194).

31664470382 is a wasteful number, since it uses less digits than its factorization.

31664470382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15832235193.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 31664470382 in words is "thirty-one billion, six hundred sixty-four million, four hundred seventy thousand, three hundred eighty-two".