47717545807 has 2 divisors, whose sum is σ = 47717545808. Its totient is φ = 47717545806.

The previous prime is 47717545691. The next prime is 47717545819. The reversal of 47717545807 is 70854571774.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47717545807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47717545847) by changing a digit.

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 as a sum of consecutive naturals, namely, 23858772903 + 23858772904.

It is an arithmetic number, because the mean of its divisors is an integer number (23858772904).

Almost surely, 2^47717545807 is an apocalyptic number.

47717545807 is a deficient number, since it is larger than the sum of its proper divisors (1).

47717545807 is an equidigital number, since it uses as much as digits as its factorization.

47717545807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7683200, while the sum is 55.

The spelling of 47717545807 in words is "forty-seven billion, seven hundred seventeen million, five hundred forty-five thousand, eight hundred seven".