47423056817 has 2 divisors, whose sum is σ = 47423056818. Its totient is φ = 47423056816.

The previous prime is 47423056789. The next prime is 47423056847. The reversal of 47423056817 is 71865032474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46908629056 + 514427761 = 216584^2 + 22681^2 .

It is a cyclic number.

It is not a de Polignac number, because 47423056817 - 2¹⁶ = 47422991281 is a prime.

It is not a weakly prime, because it can be changed into another prime (47423056847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23711528408 + 23711528409.

It is an arithmetic number, because the mean of its divisors is an integer number (23711528409).

Almost surely, 2^47423056817 is an apocalyptic number.

It is an amenable number.

47423056817 is a deficient number, since it is larger than the sum of its proper divisors (1).

47423056817 is an equidigital number, since it uses as much as digits as its factorization.

47423056817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 47423056817 in words is "forty-seven billion, four hundred twenty-three million, fifty-six thousand, eight hundred seventeen".