22861105857 has 12 divisors (see below), whose sum is σ = 33036065920. Its totient is φ = 15234059448.

The previous prime is 22861105849. The next prime is 22861105867. The reversal of 22861105857 is 75850116822.

22861105857 is a `hidden beast` number, since 2 + 2 + 8 + 61 + 1 + 0 + 585 + 7 = 666.

It is not a de Polignac number, because 22861105857 - 2³ = 22861105849 is a prime.

It is a super-2 number, since 2×22861105857² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22861105867) 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, 534757 + ... + 575922.

Almost surely, 2^22861105857 is an apocalyptic number.

It is an amenable number.

22861105857 is a deficient number, since it is larger than the sum of its proper divisors (10174960063).

22861105857 is a wasteful number, since it uses less digits than its factorization.

22861105857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112972 (or 1112969 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 22861105857 in words is "twenty-two billion, eight hundred sixty-one million, one hundred five thousand, eight hundred fifty-seven".