6257513879 has 2 divisors, whose sum is σ = 6257513880. Its totient is φ = 6257513878.

The previous prime is 6257513707. The next prime is 6257513893. The reversal of 6257513879 is 9783157526.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6257513879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6257513879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6257513179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3128756939 + 3128756940.

It is an arithmetic number, because the mean of its divisors is an integer number (3128756940).

Almost surely, 2^6257513879 is an apocalyptic number.

6257513879 is a deficient number, since it is larger than the sum of its proper divisors (1).

6257513879 is an equidigital number, since it uses as much as digits as its factorization.

6257513879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 53.

The square root of 6257513879 is about 79104.4491732292. The cubic root of 6257513879 is about 1842.7536234876.

The spelling of 6257513879 in words is "six billion, two hundred fifty-seven million, five hundred thirteen thousand, eight hundred seventy-nine".