31647672343 has 8 divisors (see below), whose sum is σ = 36184132512. Its totient is φ = 27115053216.

The previous prime is 31647672323. The next prime is 31647672347. The reversal of 31647672343 is 34327674613.

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 31647672343 - 2⁹ = 31647671831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31647672293 and 31647672302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31647672347) 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, 942580 + ... + 975577.

It is an arithmetic number, because the mean of its divisors is an integer number (4523016564).

Almost surely, 2^31647672343 is an apocalyptic number.

31647672343 is a deficient number, since it is larger than the sum of its proper divisors (4536460169).

31647672343 is a wasteful number, since it uses less digits than its factorization.

31647672343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920521.

The product of its digits is 1524096, while the sum is 46.

The spelling of 31647672343 in words is "thirty-one billion, six hundred forty-seven million, six hundred seventy-two thousand, three hundred forty-three".