4521436849 has 2 divisors, whose sum is σ = 4521436850. Its totient is φ = 4521436848.

The previous prime is 4521436823. The next prime is 4521436891. The reversal of 4521436849 is 9486341254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2706080400 + 1815356449 = 52020^2 + 42607^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521436849 - 2⁵ = 4521436817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4521436799 and 4521436808.

It is not a weakly prime, because it can be changed into another prime (4521436649) 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, 2260718424 + 2260718425.

It is an arithmetic number, because the mean of its divisors is an integer number (2260718425).

Almost surely, 2^4521436849 is an apocalyptic number.

It is an amenable number.

4521436849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521436849 is an equidigital number, since it uses as much as digits as its factorization.

4521436849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 46.

The square root of 4521436849 is about 67241.6303267552. The cubic root of 4521436849 is about 1653.5810620447.

The spelling of 4521436849 in words is "four billion, five hundred twenty-one million, four hundred thirty-six thousand, eight hundred forty-nine".