47014871818 has 4 divisors (see below), whose sum is σ = 70522307730. Its totient is φ = 23507435908.

The previous prime is 47014871797. The next prime is 47014871819. The reversal of 47014871818 is 81817841074.

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

It can be written as a sum of positive squares in only one way, i.e., 46056164449 + 958707369 = 214607^2 + 30963^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (47014871819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11753717953 + ... + 11753717956.

Almost surely, 2^47014871818 is an apocalyptic number.

47014871818 is a deficient number, since it is larger than the sum of its proper divisors (23507435912).

47014871818 is a wasteful number, since it uses less digits than its factorization.

47014871818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23507435911.

The product of its (nonzero) digits is 401408, while the sum is 49.

The spelling of 47014871818 in words is "forty-seven billion, fourteen million, eight hundred seventy-one thousand, eight hundred eighteen".