47799185281 has 4 divisors (see below), whose sum is σ = 49877410752. Its totient is φ = 45720959812.

The previous prime is 47799185173. The next prime is 47799185339. The reversal of 47799185281 is 18258199774.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47799185281 - 2¹¹ = 47799183233 is a prime.

It is a super-2 number, since 2×47799185281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47799182281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039112701 + ... + 1039112746.

It is an arithmetic number, because the mean of its divisors is an integer number (12469352688).

Almost surely, 2^47799185281 is an apocalyptic number.

It is an amenable number.

47799185281 is a deficient number, since it is larger than the sum of its proper divisors (2078225471).

47799185281 is a wasteful number, since it uses less digits than its factorization.

47799185281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078225470.

The product of its digits is 10160640, while the sum is 61.

The spelling of 47799185281 in words is "forty-seven billion, seven hundred ninety-nine million, one hundred eighty-five thousand, two hundred eighty-one".