2947491348481 has 2 divisors, whose sum is σ = 2947491348482. Its totient is φ = 2947491348480.

The previous prime is 2947491348479. The next prime is 2947491348547. The reversal of 2947491348481 is 1848431947492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2524971848256 + 422519500225 = 1589016^2 + 650015^2 .

It is a cyclic number.

It is not a de Polignac number, because 2947491348481 - 2¹ = 2947491348479 is a prime.

It is a super-2 number, since 2×2947491348481² (a number of 26 digits) contains 22 as substring.

Together with 2947491348479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2947491348421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473745674240 + 1473745674241.

It is an arithmetic number, because the mean of its divisors is an integer number (1473745674241).

Almost surely, 2^{2947491348481} is an apocalyptic number.

It is an amenable number.

2947491348481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2947491348481 is an equidigital number, since it uses as much as digits as its factorization.

2947491348481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55738368, while the sum is 64.

The spelling of 2947491348481 in words is "two trillion, nine hundred forty-seven billion, four hundred ninety-one million, three hundred forty-eight thousand, four hundred eighty-one".