47271878018 has 8 divisors (see below), whose sum is σ = 70919457660. Its totient is φ = 23632058800.

The previous prime is 47271877987. The next prime is 47271878047. The reversal of 47271878018 is 81087817274.

It can be written as a sum of positive squares in 2 ways, for example, as 46316635369 + 955242649 = 215213^2 + 30907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1924853 + ... + 1949256.

Almost surely, 2^47271878018 is an apocalyptic number.

47271878018 is a deficient number, since it is larger than the sum of its proper divisors (23647579642).

47271878018 is a wasteful number, since it uses less digits than its factorization.

47271878018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880212.

The product of its (nonzero) digits is 1404928, while the sum is 53.

The spelling of 47271878018 in words is "forty-seven billion, two hundred seventy-one million, eight hundred seventy-eight thousand, eighteen".