4164543457 has 2 divisors, whose sum is σ = 4164543458. Its totient is φ = 4164543456.

The previous prime is 4164543413. The next prime is 4164543511. The reversal of 4164543457 is 7543454614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2304864081 + 1859679376 = 48009^2 + 43124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4164543457 is a prime.

It is not a weakly prime, because it can be changed into another prime (4164523457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2082271728 + 2082271729.

It is an arithmetic number, because the mean of its divisors is an integer number (2082271729).

Almost surely, 2^4164543457 is an apocalyptic number.

It is an amenable number.

4164543457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4164543457 is an equidigital number, since it uses as much as digits as its factorization.

4164543457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 43.

The square root of 4164543457 is about 64533.2740297593. The cubic root of 4164543457 is about 1608.8756030509.

The spelling of 4164543457 in words is "four billion, one hundred sixty-four million, five hundred forty-three thousand, four hundred fifty-seven".