4853518421 has 2 divisors, whose sum is σ = 4853518422. Its totient is φ = 4853518420.

The previous prime is 4853518393. The next prime is 4853518433. The reversal of 4853518421 is 1248153584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4007523025 + 845995396 = 63305^2 + 29086^2 .

It is a cyclic number.

It is not a de Polignac number, because 4853518421 - 2¹⁰ = 4853517397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4853518451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2426759210 + 2426759211.

It is an arithmetic number, because the mean of its divisors is an integer number (2426759211).

Almost surely, 2^4853518421 is an apocalyptic number.

It is an amenable number.

4853518421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4853518421 is an equidigital number, since it uses as much as digits as its factorization.

4853518421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153600, while the sum is 41.

The square root of 4853518421 is about 69667.1975968605. The cubic root of 4853518421 is about 1693.1115047169. Note that the first 3 decimals are identical.

The spelling of 4853518421 in words is "four billion, eight hundred fifty-three million, five hundred eighteen thousand, four hundred twenty-one".