2281781375527 has 2 divisors, whose sum is σ = 2281781375528. Its totient is φ = 2281781375526.

The previous prime is 2281781375449. The next prime is 2281781375561. The reversal of 2281781375527 is 7255731871822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2281781375527 - 2¹⁹ = 2281780851239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2281781375567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140890687763 + 1140890687764.

It is an arithmetic number, because the mean of its divisors is an integer number (1140890687764).

Almost surely, 2^{2281781375527} is an apocalyptic number.

2281781375527 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281781375527 is an equidigital number, since it uses as much as digits as its factorization.

2281781375527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13171200, while the sum is 58.

The spelling of 2281781375527 in words is "two trillion, two hundred eighty-one billion, seven hundred eighty-one million, three hundred seventy-five thousand, five hundred twenty-seven".