22857142857 has 16 divisors (see below), whose sum is σ = 30713299968. Its totient is φ = 15119773200.

The previous prime is 22857142853. The next prime is 22857142877. The reversal of 22857142857 is 75824175822.

It is not a de Polignac number, because 22857142857 - 2² = 22857142853 is a prime.

It is a super-2 number, since 2×22857142857² (a number of 22 digits) contains 22 as substring.

22857142857 is a modest number, since divided by 142857 gives 22857 as remainder.

It is not an unprimeable number, because it can be changed into a prime (22857142853) 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, 371428 + ... + 428570.

It is an arithmetic number, because the mean of its divisors is an integer number (1919581248).

Almost surely, 2^22857142857 is an apocalyptic number.

It is an amenable number.

22857142857 is a deficient number, since it is larger than the sum of its proper divisors (7856157111).

22857142857 is a wasteful number, since it uses less digits than its factorization.

22857142857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58180.

The product of its digits is 2508800, while the sum is 51.

The spelling of 22857142857 in words is "twenty-two billion, eight hundred fifty-seven million, one hundred forty-two thousand, eight hundred fifty-seven".