2281685633 has 2 divisors, whose sum is σ = 2281685634. Its totient is φ = 2281685632.

The previous prime is 2281685621. The next prime is 2281685671. The reversal of 2281685633 is 3365861822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2200829569 + 80856064 = 46913^2 + 8992^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281685633 - 2¹⁶ = 2281620097 is a prime.

It is a super-2 number, since 2×2281685633² = 10412178655677221378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2281685333) 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, 1140842816 + 1140842817.

It is an arithmetic number, because the mean of its divisors is an integer number (1140842817).

Almost surely, 2^2281685633 is an apocalyptic number.

It is an amenable number.

2281685633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281685633 is an equidigital number, since it uses as much as digits as its factorization.

2281685633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 44.

The square root of 2281685633 is about 47766.9931333342. The cubic root of 2281685633 is about 1316.4931466111.

It can be divided in two parts, 228 and 1685633, that added together give a palindrome (1685861).

The spelling of 2281685633 in words is "two billion, two hundred eighty-one million, six hundred eighty-five thousand, six hundred thirty-three".