47497782841 has 2 divisors, whose sum is σ = 47497782842. Its totient is φ = 47497782840.

The previous prime is 47497782823. The next prime is 47497782863. The reversal of 47497782841 is 14828779474.

It is a happy number.

47497782841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35336104441 + 12161678400 = 187979^2 + 110280^2 .

It is a cyclic number.

It is not a de Polignac number, because 47497782841 - 2¹¹ = 47497780793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47497782841.

It is not a weakly prime, because it can be changed into another prime (47497782821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23748891420 + 23748891421.

It is an arithmetic number, because the mean of its divisors is an integer number (23748891421).

Almost surely, 2^47497782841 is an apocalyptic number.

It is an amenable number.

47497782841 is a deficient number, since it is larger than the sum of its proper divisors (1).

47497782841 is an equidigital number, since it uses as much as digits as its factorization.

47497782841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25288704, while the sum is 61.

The spelling of 47497782841 in words is "forty-seven billion, four hundred ninety-seven million, seven hundred eighty-two thousand, eight hundred forty-one".