17316440047 has 2 divisors, whose sum is σ = 17316440048. Its totient is φ = 17316440046.

The previous prime is 17316440021. The next prime is 17316440069. The reversal of 17316440047 is 74004461371.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17316440047 - 2³¹ = 15168956399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17316439988 and 17316440015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17316440747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8658220023 + 8658220024.

It is an arithmetic number, because the mean of its divisors is an integer number (8658220024).

Almost surely, 2^17316440047 is an apocalyptic number.

17316440047 is a deficient number, since it is larger than the sum of its proper divisors (1).

17316440047 is an equidigital number, since it uses as much as digits as its factorization.

17316440047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 17316440047 in words is "seventeen billion, three hundred sixteen million, four hundred forty thousand, forty-seven".