47483847221 has 2 divisors, whose sum is σ = 47483847222. Its totient is φ = 47483847220.

The previous prime is 47483847193. The next prime is 47483847233. The reversal of 47483847221 is 12274838474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47291026225 + 192820996 = 217465^2 + 13886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47483847221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47483847221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47483841221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23741923610 + 23741923611.

It is an arithmetic number, because the mean of its divisors is an integer number (23741923611).

Almost surely, 2^47483847221 is an apocalyptic number.

It is an amenable number.

47483847221 is a deficient number, since it is larger than the sum of its proper divisors (1).

47483847221 is an equidigital number, since it uses as much as digits as its factorization.

47483847221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2408448, while the sum is 50.

The spelling of 47483847221 in words is "forty-seven billion, four hundred eighty-three million, eight hundred forty-seven thousand, two hundred twenty-one".