3609061505281 has 2 divisors, whose sum is σ = 3609061505282. Its totient is φ = 3609061505280.

The previous prime is 3609061505261. The next prime is 3609061505299. The reversal of 3609061505281 is 1825051609063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3104273991025 + 504787514256 = 1761895^2 + 710484^2 .

It is a cyclic number.

It is not a de Polignac number, because 3609061505281 - 2¹⁷ = 3609061374209 is a prime.

It is a super-2 number, since 2×3609061505281² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3609061505261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804530752640 + 1804530752641.

It is an arithmetic number, because the mean of its divisors is an integer number (1804530752641).

Almost surely, 2^{3609061505281} is an apocalyptic number.

It is an amenable number.

3609061505281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3609061505281 is an equidigital number, since it uses as much as digits as its factorization.

3609061505281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 3609061505281 in words is "three trillion, six hundred nine billion, sixty-one million, five hundred five thousand, two hundred eighty-one".