31974771387696 has 20 divisors (see below), whose sum is σ = 82601492751672. Its totient is φ = 10658257129216.

The previous prime is 31974771387673. The next prime is 31974771387719. The reversal of 31974771387696 is 69678317747913.

It is an interprime number because it is at equal distance from previous prime (31974771387673) and next prime (31974771387719).

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 in 3 ways as a sum of consecutive naturals, for example, 333070535241 + ... + 333070535336.

Almost surely, 2^{31974771387696} is an apocalyptic number.

It is an amenable number.

31974771387696 is an abundant number, since it is smaller than the sum of its proper divisors (50626721363976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31974771387696 is a wasteful number, since it uses less digits than its factorization.

31974771387696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666141070588 (or 666141070582 counting only the distinct ones).

The product of its digits is 2016379008, while the sum is 78.

The spelling of 31974771387696 in words is "thirty-one trillion, nine hundred seventy-four billion, seven hundred seventy-one million, three hundred eighty-seven thousand, six hundred ninety-six".