6388825013 has 2 divisors, whose sum is σ = 6388825014. Its totient is φ = 6388825012.

The previous prime is 6388825007. The next prime is 6388825049. The reversal of 6388825013 is 3105288836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5691495364 + 697329649 = 75442^2 + 26407^2 .

It is a cyclic number.

It is not a de Polignac number, because 6388825013 - 2²⁸ = 6120389557 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 (6388825213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194412506 + 3194412507.

It is an arithmetic number, because the mean of its divisors is an integer number (3194412507).

Almost surely, 2^6388825013 is an apocalyptic number.

It is an amenable number.

6388825013 is a deficient number, since it is larger than the sum of its proper divisors (1).

6388825013 is an equidigital number, since it uses as much as digits as its factorization.

6388825013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 6388825013 is about 79930.1258162403. The cubic root of 6388825013 is about 1855.5542852380.

The spelling of 6388825013 in words is "six billion, three hundred eighty-eight million, eight hundred twenty-five thousand, thirteen".