4812646493 has 2 divisors, whose sum is σ = 4812646494. Its totient is φ = 4812646492.

The previous prime is 4812646457. The next prime is 4812646537. The reversal of 4812646493 is 3946462184.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3887148409 + 925498084 = 62347^2 + 30422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4812646493 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4812646403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2406323246 + 2406323247.

It is an arithmetic number, because the mean of its divisors is an integer number (2406323247).

Almost surely, 2^4812646493 is an apocalyptic number.

It is an amenable number.

4812646493 is a deficient number, since it is larger than the sum of its proper divisors (1).

4812646493 is an equidigital number, since it uses as much as digits as its factorization.

4812646493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 47.

The square root of 4812646493 is about 69373.2404677769. The cubic root of 4812646493 is about 1688.3454849631.

The spelling of 4812646493 in words is "four billion, eight hundred twelve million, six hundred forty-six thousand, four hundred ninety-three".