47283197809 has 9 divisors (see below), whose sum is σ = 50232099211. Its totient is φ = 44498354080.

The previous prime is 47283197803. The next prime is 47283197837. The reversal of 47283197809 is 90879138274.

The square root of 47283197809 is 217447.

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., 36812178225 + 10471019584 = 191865^2 + 102328^2 .

It is not a de Polignac number, because 47283197809 - 2⁵ = 47283197777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47283197803) 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, 3690204 + ... + 3702994.

Almost surely, 2^47283197809 is an apocalyptic number.

47283197809 is the 217447-th square number.

47283197809 is the 108724-th centered octagonal number.

It is an amenable number.

47283197809 is a deficient number, since it is larger than the sum of its proper divisors (2948901402).

47283197809 is an frugal number, since it uses more digits than its factorization.

47283197809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25616 (or 12808 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 47283197809 in words is "forty-seven billion, two hundred eighty-three million, one hundred ninety-seven thousand, eight hundred nine".