31968934692479 has 4 divisors (see below), whose sum is σ = 32131213548984. Its totient is φ = 31806655835976.

The previous prime is 31968934692473. The next prime is 31968934692481. The reversal of 31968934692479 is 97429643986913.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31968934692479 - 2¹⁶ = 31968934626943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31968934692473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81139427957 + ... + 81139428350.

It is an arithmetic number, because the mean of its divisors is an integer number (8032803387246).

Almost surely, 2^{31968934692479} is an apocalyptic number.

31968934692479 is a deficient number, since it is larger than the sum of its proper divisors (162278856505).

31968934692479 is a wasteful number, since it uses less digits than its factorization.

31968934692479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162278856504.

The product of its digits is 3809369088, while the sum is 80.

The spelling of 31968934692479 in words is "thirty-one trillion, nine hundred sixty-eight billion, nine hundred thirty-four million, six hundred ninety-two thousand, four hundred seventy-nine".