4626128849 has 2 divisors, whose sum is σ = 4626128850. Its totient is φ = 4626128848.

The previous prime is 4626128779. The next prime is 4626128867. The reversal of 4626128849 is 9488216264.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4520141824 + 105987025 = 67232^2 + 10295^2 .

It is a cyclic number.

It is not a de Polignac number, because 4626128849 - 2⁸ = 4626128593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4626128797 and 4626128806.

It is not a weakly prime, because it can be changed into another prime (4626128869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2313064424 + 2313064425.

It is an arithmetic number, because the mean of its divisors is an integer number (2313064425).

Almost surely, 2^4626128849 is an apocalyptic number.

It is an amenable number.

4626128849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4626128849 is an equidigital number, since it uses as much as digits as its factorization.

4626128849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 50.

The square root of 4626128849 is about 68015.6515002246. The cubic root of 4626128849 is about 1666.2464670594.

The spelling of 4626128849 in words is "four billion, six hundred twenty-six million, one hundred twenty-eight thousand, eight hundred forty-nine".