4645113581 has 2 divisors, whose sum is σ = 4645113582. Its totient is φ = 4645113580.

The previous prime is 4645113497. The next prime is 4645113587. The reversal of 4645113581 is 1853115464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4615028356 + 30085225 = 67934^2 + 5485^2 .

It is a cyclic number.

It is not a de Polignac number, because 4645113581 - 2¹⁰ = 4645112557 is a prime.

It is a super-2 number, since 2×4645113581² = 43154160360781287122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4645113587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322556790 + 2322556791.

It is an arithmetic number, because the mean of its divisors is an integer number (2322556791).

Almost surely, 2^4645113581 is an apocalyptic number.

It is an amenable number.

4645113581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645113581 is an equidigital number, since it uses as much as digits as its factorization.

4645113581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 38.

The square root of 4645113581 is about 68155.0701048719. The cubic root of 4645113581 is about 1668.5226732077.

The spelling of 4645113581 in words is "four billion, six hundred forty-five million, one hundred thirteen thousand, five hundred eighty-one".