4581229282561 has 2 divisors, whose sum is σ = 4581229282562. Its totient is φ = 4581229282560.

The previous prime is 4581229282543. The next prime is 4581229282577. The reversal of 4581229282561 is 1652829221854.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3048166810000 + 1533062472561 = 1745900^2 + 1238169^2 .

It is a cyclic number.

It is not a de Polignac number, because 4581229282561 - 2¹⁷ = 4581229151489 is a prime.

It is not a weakly prime, because it can be changed into another prime (4581229282501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2290614641280 + 2290614641281.

It is an arithmetic number, because the mean of its divisors is an integer number (2290614641281).

Almost surely, 2^{4581229282561} is an apocalyptic number.

It is an amenable number.

4581229282561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4581229282561 is an equidigital number, since it uses as much as digits as its factorization.

4581229282561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5529600, while the sum is 55.

The spelling of 4581229282561 in words is "four trillion, five hundred eighty-one billion, two hundred twenty-nine million, two hundred eighty-two thousand, five hundred sixty-one".