2281351478881 has 2 divisors, whose sum is σ = 2281351478882. Its totient is φ = 2281351478880.

The previous prime is 2281351478851. The next prime is 2281351478977. The reversal of 2281351478881 is 1888741531822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1904896832400 + 376454646481 = 1380180^2 + 613559^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281351478881 - 2¹⁹ = 2281350954593 is a prime.

It is a super-2 number, since 2×2281351478881² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2281351478801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140675739440 + 1140675739441.

It is an arithmetic number, because the mean of its divisors is an integer number (1140675739441).

Almost surely, 2^{2281351478881} is an apocalyptic number.

It is an amenable number.

2281351478881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281351478881 is an equidigital number, since it uses as much as digits as its factorization.

2281351478881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6881280, while the sum is 58.

The spelling of 2281351478881 in words is "two trillion, two hundred eighty-one billion, three hundred fifty-one million, four hundred seventy-eight thousand, eight hundred eighty-one".