4662161281 has 2 divisors, whose sum is σ = 4662161282. Its totient is φ = 4662161280.

The previous prime is 4662161197. The next prime is 4662161293. The reversal of 4662161281 is 1821612664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3850823025 + 811338256 = 62055^2 + 28484^2 .

It is a cyclic number.

It is not a de Polignac number, because 4662161281 - 2¹¹ = 4662159233 is a prime.

It is a super-2 number, since 2×4662161281² = 43471495620111121922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4662161281.

It is not a weakly prime, because it can be changed into another prime (4662164281) 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, 2331080640 + 2331080641.

It is an arithmetic number, because the mean of its divisors is an integer number (2331080641).

Almost surely, 2^4662161281 is an apocalyptic number.

It is an amenable number.

4662161281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4662161281 is an equidigital number, since it uses as much as digits as its factorization.

4662161281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 4662161281 is about 68280.0210969505. The cubic root of 4662161281 is about 1670.5613565762.

The spelling of 4662161281 in words is "four billion, six hundred sixty-two million, one hundred sixty-one thousand, two hundred eighty-one".