17509040047 has 2 divisors, whose sum is σ = 17509040048. Its totient is φ = 17509040046.

The previous prime is 17509039991. The next prime is 17509040089. The reversal of 17509040047 is 74004090571.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17509040047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17509039988 and 17509040015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17509040147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8754520023 + 8754520024.

It is an arithmetic number, because the mean of its divisors is an integer number (8754520024).

Almost surely, 2^17509040047 is an apocalyptic number.

17509040047 is a deficient number, since it is larger than the sum of its proper divisors (1).

17509040047 is an equidigital number, since it uses as much as digits as its factorization.

17509040047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 17509040047 in words is "seventeen billion, five hundred nine million, forty thousand, forty-seven".