6261568857 has 12 divisors (see below), whose sum is σ = 9058830144. Its totient is φ = 4167759960.

The previous prime is 6261568837. The next prime is 6261568891. The reversal of 6261568857 is 7588651626.

6261568857 is a `hidden beast` number, since 6 + 26 + 1 + 568 + 8 + 57 = 666.

It is not a de Polignac number, because 6261568857 - 2⁸ = 6261568601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6261568837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545613 + ... + 556970.

It is an arithmetic number, because the mean of its divisors is an integer number (754902512).

Almost surely, 2^6261568857 is an apocalyptic number.

It is an amenable number.

6261568857 is a deficient number, since it is larger than the sum of its proper divisors (2797261287).

6261568857 is a wasteful number, since it uses less digits than its factorization.

6261568857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103220 (or 1103217 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 6261568857 is about 79130.0755528516. The cubic root of 6261568857 is about 1843.1515830214.

The spelling of 6261568857 in words is "six billion, two hundred sixty-one million, five hundred sixty-eight thousand, eight hundred fifty-seven".