22628889618 has 64 divisors (see below), whose sum is σ = 50851307520. Its totient is φ = 6675460352.

The previous prime is 22628889599. The next prime is 22628889623. The reversal of 22628889618 is 81698882622.

It is a super-3 number, since 3×22628889618³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56671 + ... + 220157.

It is an arithmetic number, because the mean of its divisors is an integer number (794551680).

Almost surely, 2^22628889618 is an apocalyptic number.

22628889618 is an abundant number, since it is smaller than the sum of its proper divisors (28222417902).

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

22628889618 is a wasteful number, since it uses less digits than its factorization.

22628889618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163591.

The product of its digits is 10616832, while the sum is 60.

The spelling of 22628889618 in words is "twenty-two billion, six hundred twenty-eight million, eight hundred eighty-nine thousand, six hundred eighteen".