47809832617 has 2 divisors, whose sum is σ = 47809832618. Its totient is φ = 47809832616.

The previous prime is 47809832611. The next prime is 47809832647. The reversal of 47809832617 is 71623890874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40856941161 + 6952891456 = 202131^2 + 83384^2 .

It is a cyclic number.

It is not a de Polignac number, because 47809832617 - 2⁷ = 47809832489 is a prime.

It is not a weakly prime, because it can be changed into another prime (47809832611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23904916308 + 23904916309.

It is an arithmetic number, because the mean of its divisors is an integer number (23904916309).

Almost surely, 2^47809832617 is an apocalyptic number.

It is an amenable number.

47809832617 is a deficient number, since it is larger than the sum of its proper divisors (1).

47809832617 is an equidigital number, since it uses as much as digits as its factorization.

47809832617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 47809832617 in words is "forty-seven billion, eight hundred nine million, eight hundred thirty-two thousand, six hundred seventeen".