47211820056 has 40 divisors (see below), whose sum is σ = 132236812620. Its totient is φ = 15737273136.

The previous prime is 47211820039. The next prime is 47211820091. The reversal of 47211820056 is 65002811274.

47211820056 is a `hidden beast` number, since 472 + 1 + 182 + 0 + 0 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 47211820056.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 36428226 + ... + 36429521.

Almost surely, 2^47211820056 is an apocalyptic number.

It is an amenable number.

47211820056 is an abundant number, since it is smaller than the sum of its proper divisors (85024992564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47211820056 is a wasteful number, since it uses less digits than its factorization.

47211820056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72857765 (or 72857752 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 47211820056 in words is "forty-seven billion, two hundred eleven million, eight hundred twenty thousand, fifty-six".