4787318257 has 2 divisors, whose sum is σ = 4787318258. Its totient is φ = 4787318256.

The previous prime is 4787318191. The next prime is 4787318293. The reversal of 4787318257 is 7528137874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4714744896 + 72573361 = 68664^2 + 8519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4787318257 is a prime.

It is not a weakly prime, because it can be changed into another prime (4787313257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2393659128 + 2393659129.

It is an arithmetic number, because the mean of its divisors is an integer number (2393659129).

Almost surely, 2^4787318257 is an apocalyptic number.

It is an amenable number.

4787318257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4787318257 is an equidigital number, since it uses as much as digits as its factorization.

4787318257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2634240, while the sum is 52.

The square root of 4787318257 is about 69190.4491747235. The cubic root of 4787318257 is about 1685.3784375424.

The spelling of 4787318257 in words is "four billion, seven hundred eighty-seven million, three hundred eighteen thousand, two hundred fifty-seven".