4664123549 has 2 divisors, whose sum is σ = 4664123550. Its totient is φ = 4664123548.

The previous prime is 4664123449. The next prime is 4664123557. The reversal of 4664123549 is 9453214664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4575575449 + 88548100 = 67643^2 + 9410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4664123549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4664123579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2332061774 + 2332061775.

It is an arithmetic number, because the mean of its divisors is an integer number (2332061775).

Almost surely, 2^4664123549 is an apocalyptic number.

It is an amenable number.

4664123549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4664123549 is an equidigital number, since it uses as much as digits as its factorization.

4664123549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 44.

The square root of 4664123549 is about 68294.3888544293. The cubic root of 4664123549 is about 1670.7956991979.

The spelling of 4664123549 in words is "four billion, six hundred sixty-four million, one hundred twenty-three thousand, five hundred forty-nine".