22638115386 has 40 divisors (see below), whose sum is σ = 50748351060. Its totient is φ = 7542735552.

The previous prime is 22638115369. The next prime is 22638115411. The reversal of 22638115386 is 68351183622.

22638115386 is a `hidden beast` number, since 2 + 2 + 638 + 1 + 1 + 5 + 3 + 8 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20930855625 + 1707259761 = 144675^2 + 41319^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 355680 + ... + 414468.

Almost surely, 2^22638115386 is an apocalyptic number.

22638115386 is an abundant number, since it is smaller than the sum of its proper divisors (28110235674).

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

22638115386 is a wasteful number, since it uses less digits than its factorization.

22638115386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61180 (or 61171 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 22638115386 in words is "twenty-two billion, six hundred thirty-eight million, one hundred fifteen thousand, three hundred eighty-six".