31347414647 has 4 divisors (see below), whose sum is σ = 31776831360. Its totient is φ = 30917997936.

The previous prime is 31347414629. The next prime is 31347414661. The reversal of 31347414647 is 74641474313.

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 31347414647 - 2⁶ = 31347414583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31347414598 and 31347414607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31347414677) 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, 214708247 + ... + 214708392.

It is an arithmetic number, because the mean of its divisors is an integer number (7944207840).

Almost surely, 2^31347414647 is an apocalyptic number.

31347414647 is a deficient number, since it is larger than the sum of its proper divisors (429416713).

31347414647 is an equidigital number, since it uses as much as digits as its factorization.

31347414647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429416712.

The product of its digits is 677376, while the sum is 44.

The spelling of 31347414647 in words is "thirty-one billion, three hundred forty-seven million, four hundred fourteen thousand, six hundred forty-seven".