31963349347 has 2 divisors, whose sum is σ = 31963349348. Its totient is φ = 31963349346.

The previous prime is 31963349329. The next prime is 31963349377. The reversal of 31963349347 is 74394336913.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31963349347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31963349294 and 31963349303.

It is not a weakly prime, because it can be changed into another prime (31963349377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15981674673 + 15981674674.

It is an arithmetic number, because the mean of its divisors is an integer number (15981674674).

Almost surely, 2^31963349347 is an apocalyptic number.

31963349347 is a deficient number, since it is larger than the sum of its proper divisors (1).

31963349347 is an equidigital number, since it uses as much as digits as its factorization.

31963349347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4408992, while the sum is 52.

The spelling of 31963349347 in words is "thirty-one billion, nine hundred sixty-three million, three hundred forty-nine thousand, three hundred forty-seven".