4538040817 has 2 divisors, whose sum is σ = 4538040818. Its totient is φ = 4538040816.

The previous prime is 4538040811. The next prime is 4538040821. The reversal of 4538040817 is 7180408354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3791603776 + 746437041 = 61576^2 + 27321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4538040817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4538040817.

It is not a weakly prime, because it can be changed into another prime (4538040811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2269020408 + 2269020409.

It is an arithmetic number, because the mean of its divisors is an integer number (2269020409).

Almost surely, 2^4538040817 is an apocalyptic number.

It is an amenable number.

4538040817 is a deficient number, since it is larger than the sum of its proper divisors (1).

4538040817 is an equidigital number, since it uses as much as digits as its factorization.

4538040817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 4538040817 is about 67364.9821272150. The cubic root of 4538040817 is about 1655.6027251921.

The spelling of 4538040817 in words is "four billion, five hundred thirty-eight million, forty thousand, eight hundred seventeen".