47218472387671 has 4 divisors (see below), whose sum is σ = 50850662571352. Its totient is φ = 43586282203992.

The previous prime is 47218472387657. The next prime is 47218472387719. The reversal of 47218472387671 is 17678327481274.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47218472387671 - 2¹⁹ = 47218471863383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47218472387597 and 47218472387606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47218472387651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1816095091821 + ... + 1816095091846.

It is an arithmetic number, because the mean of its divisors is an integer number (12712665642838).

Almost surely, 2^{47218472387671} is an apocalyptic number.

47218472387671 is a deficient number, since it is larger than the sum of its proper divisors (3632190183681).

47218472387671 is a wasteful number, since it uses less digits than its factorization.

47218472387671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632190183680.

The product of its digits is 177020928, while the sum is 67.

The spelling of 47218472387671 in words is "forty-seven trillion, two hundred eighteen billion, four hundred seventy-two million, three hundred eighty-seven thousand, six hundred seventy-one".