22718889386 has 12 divisors (see below), whose sum is σ = 36200860998. Its totient is φ = 10691241792.

The previous prime is 22718889353. The next prime is 22718889409. The reversal of 22718889386 is 68398881722.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21688158361 + 1030731025 = 147269^2 + 32105^2 .

It is a super-3 number, since 3×22718889386³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19652441 + ... + 19653596.

Almost surely, 2^22718889386 is an apocalyptic number.

22718889386 is a deficient number, since it is larger than the sum of its proper divisors (13481971612).

22718889386 is a wasteful number, since it uses less digits than its factorization.

22718889386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39306073 (or 39306056 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 62.

The spelling of 22718889386 in words is "twenty-two billion, seven hundred eighteen million, eight hundred eighty-nine thousand, three hundred eighty-six".