47040804046981 has 2 divisors, whose sum is σ = 47040804046982. Its totient is φ = 47040804046980.

The previous prime is 47040804046979. The next prime is 47040804047059. The reversal of 47040804046981 is 18964040804074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41796108630081 + 5244695416900 = 6464991^2 + 2290130^2 .

It is a cyclic number.

It is not a de Polignac number, because 47040804046981 - 2¹ = 47040804046979 is a prime.

It is a super-2 number, since 2×47040804046981² (a number of 28 digits) contains 22 as substring.

Together with 47040804046979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47040804046931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23520402023490 + 23520402023491.

It is an arithmetic number, because the mean of its divisors is an integer number (23520402023491).

Almost surely, 2^{47040804046981} is an apocalyptic number.

It is an amenable number.

47040804046981 is a deficient number, since it is larger than the sum of its proper divisors (1).

47040804046981 is an equidigital number, since it uses as much as digits as its factorization.

47040804046981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 47040804046981 in words is "forty-seven trillion, forty billion, eight hundred four million, forty-six thousand, nine hundred eighty-one".