22628865852 has 36 divisors (see below), whose sum is σ = 60565495536. Its totient is φ = 7099251840.

The previous prime is 22628865829. The next prime is 22628865863. The reversal of 22628865852 is 25856882622.

22628865852 is a `hidden beast` number, since 2 + 2 + 628 + 8 + 6 + 5 + 8 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18487024 + ... + 18488247.

It is an arithmetic number, because the mean of its divisors is an integer number (1682374876).

Almost surely, 2^22628865852 is an apocalyptic number.

It is an amenable number.

22628865852 is an abundant number, since it is smaller than the sum of its proper divisors (37936629684).

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

22628865852 is a wasteful number, since it uses less digits than its factorization.

22628865852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36975298 (or 36975293 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 54.

The spelling of 22628865852 in words is "twenty-two billion, six hundred twenty-eight million, eight hundred sixty-five thousand, eight hundred fifty-two".