47205447220 has 12 divisors (see below), whose sum is σ = 99131439204. Its totient is φ = 18882178880.

The previous prime is 47205447217. The next prime is 47205447241. The reversal of 47205447220 is 2274450274.

It can be written as a sum of positive squares in 2 ways, for example, as 26440060816 + 20765386404 = 162604^2 + 144102^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47205447220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180136161 + ... + 1180136200.

It is an arithmetic number, because the mean of its divisors is an integer number (8260953267).

Almost surely, 2^47205447220 is an apocalyptic number.

It is an amenable number.

47205447220 is an abundant number, since it is smaller than the sum of its proper divisors (51925991984).

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

47205447220 is a wasteful number, since it uses less digits than its factorization.

47205447220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360272370 (or 2360272368 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 37.

Adding to 47205447220 its reverse (2274450274), we get a palindrome (49479897494).

The spelling of 47205447220 in words is "forty-seven billion, two hundred five million, four hundred forty-seven thousand, two hundred twenty".