47012274821 has 2 divisors, whose sum is σ = 47012274822. Its totient is φ = 47012274820.

The previous prime is 47012274811. The next prime is 47012274847. The reversal of 47012274821 is 12847221074.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25668525796 + 21343749025 = 160214^2 + 146095^2 .

It is a cyclic number.

It is not a de Polignac number, because 47012274821 - 2¹⁰ = 47012273797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47012274811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23506137410 + 23506137411.

It is an arithmetic number, because the mean of its divisors is an integer number (23506137411).

Almost surely, 2^47012274821 is an apocalyptic number.

It is an amenable number.

47012274821 is a deficient number, since it is larger than the sum of its proper divisors (1).

47012274821 is an equidigital number, since it uses as much as digits as its factorization.

47012274821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50176, while the sum is 38.

Adding to 47012274821 its reverse (12847221074), we get a palindrome (59859495895).

The spelling of 47012274821 in words is "forty-seven billion, twelve million, two hundred seventy-four thousand, eight hundred twenty-one".