6388468057 has 2 divisors, whose sum is σ = 6388468058. Its totient is φ = 6388468056.

The previous prime is 6388468027. The next prime is 6388468061. The reversal of 6388468057 is 7508648836.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3707713881 + 2680754176 = 60891^2 + 51776^2 .

It is a cyclic number.

It is not a de Polignac number, because 6388468057 - 2⁷ = 6388467929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6388467989 and 6388468007.

It is not a weakly prime, because it can be changed into another prime (6388468007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194234028 + 3194234029.

It is an arithmetic number, because the mean of its divisors is an integer number (3194234029).

Almost surely, 2^6388468057 is an apocalyptic number.

It is an amenable number.

6388468057 is a deficient number, since it is larger than the sum of its proper divisors (1).

6388468057 is an equidigital number, since it uses as much as digits as its factorization.

6388468057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7741440, while the sum is 55.

The square root of 6388468057 is about 79927.8928597520. The cubic root of 6388468057 is about 1855.5197267931.

The spelling of 6388468057 in words is "six billion, three hundred eighty-eight million, four hundred sixty-eight thousand, fifty-seven".