2546324811281 has 2 divisors, whose sum is σ = 2546324811282. Its totient is φ = 2546324811280.

The previous prime is 2546324811263. The next prime is 2546324811287. The reversal of 2546324811281 is 1821184236452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2356350871681 + 189973939600 = 1535041^2 + 435860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2546324811281 is a prime.

It is a super-2 number, since 2×2546324811281² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2546324811287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1273162405640 + 1273162405641.

It is an arithmetic number, because the mean of its divisors is an integer number (1273162405641).

Almost surely, 2^{2546324811281} is an apocalyptic number.

It is an amenable number.

2546324811281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2546324811281 is an equidigital number, since it uses as much as digits as its factorization.

2546324811281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 737280, while the sum is 47.

The spelling of 2546324811281 in words is "two trillion, five hundred forty-six billion, three hundred twenty-four million, eight hundred eleven thousand, two hundred eighty-one".