22858640928 has 162 divisors, whose sum is σ = 66565513287. Its totient is φ = 7440796800.

The previous prime is 22858640921. The next prime is 22858640957. The reversal of 22858640928 is 82904685822.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

22858640928 is a `hidden beast` number, since 228 + 5 + 8 + 6 + 409 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11429320464 + 11429320464 = 106908^2 + 106908^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106908.

It is not an unprimeable number, because it can be changed into a prime (22858640921) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 151381653 + ... + 151381803.

Almost surely, 2^22858640928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22858640928

22858640928 is an abundant number, since it is smaller than the sum of its proper divisors (43706872359).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22858640928 is an equidigital number, since it uses as much as digits as its factorization.

22858640928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 22858640928 in words is "twenty-two billion, eight hundred fifty-eight million, six hundred forty thousand, nine hundred twenty-eight".