17859142857 has 16 divisors (see below), whose sum is σ = 24178760000. Its totient is φ = 11722974912.

The previous prime is 17859142841. The next prime is 17859142909. The reversal of 17859142857 is 75824195871.

It is a happy number.

It is not a de Polignac number, because 17859142857 - 2⁴ = 17859142841 is a prime.

It is a Duffinian number.

17859142857 is a modest number, since divided by 142857 gives 17859 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 17859142797 and 17859142806.

It is not an unprimeable number, because it can be changed into a prime (17859141857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441519 + ... + 480267.

It is an arithmetic number, because the mean of its divisors is an integer number (1511172500).

Almost surely, 2^17859142857 is an apocalyptic number.

It is an amenable number.

17859142857 is a deficient number, since it is larger than the sum of its proper divisors (6319617143).

17859142857 is a wasteful number, since it uses less digits than its factorization.

17859142857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41112.

The product of its digits is 5644800, while the sum is 57.

The spelling of 17859142857 in words is "seventeen billion, eight hundred fifty-nine million, one hundred forty-two thousand, eight hundred fifty-seven".