47133712609 has 9 divisors (see below), whose sum is σ = 47601792147. Its totient is φ = 46670197704.

The previous prime is 47133712601. The next prime is 47133712621. The reversal of 47133712609 is 90621733174.

The square root of 47133712609 is 217103.

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

47133712609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46762765009 + 370947600 = 216247^2 + 19260^2 .

It is not a de Polignac number, because 47133712609 - 2³ = 47133712601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47133712601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23229007 + ... + 23231035.

Almost surely, 2^47133712609 is an apocalyptic number.

47133712609 is the 217103-rd square number.

47133712609 is the 108552-nd centered octagonal number.

It is an amenable number.

47133712609 is a deficient number, since it is larger than the sum of its proper divisors (468079538).

47133712609 is an frugal number, since it uses more digits than its factorization.

47133712609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272 (or 2136 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 47133712609 in words is "forty-seven billion, one hundred thirty-three million, seven hundred twelve thousand, six hundred nine".