47565865216 has 81 divisors (see below), whose sum is σ = 97512929661. Its totient is φ = 23156560896.

The previous prime is 47565865213. The next prime is 47565865223. The reversal of 47565865216 is 61256856574.

The square root of 47565865216 is 218096.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2662560000 + 44903305216 = 51600^2 + 211904^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47565865213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 150049890 + ... + 150050206.

Almost surely, 2^47565865216 is an apocalyptic number.

47565865216 is the 218096-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47565865216

47565865216 is an abundant number, since it is smaller than the sum of its proper divisors (49947064445).

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

47565865216 is an frugal number, since it uses more digits than its factorization.

47565865216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 362 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 55.

The spelling of 47565865216 in words is "forty-seven billion, five hundred sixty-five million, eight hundred sixty-five thousand, two hundred sixteen".