22816227538 has 8 divisors (see below), whose sum is σ = 36856982988. Its totient is φ = 10530566544.

The previous prime is 22816227529. The next prime is 22816227541. The reversal of 22816227538 is 83572261822.

It can be written as a sum of positive squares in 2 ways, for example, as 22812175369 + 4052169 = 151037^2 + 2013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438773581 + ... + 438773632.

Almost surely, 2^22816227538 is an apocalyptic number.

22816227538 is a deficient number, since it is larger than the sum of its proper divisors (14040755450).

22816227538 is a wasteful number, since it uses less digits than its factorization.

22816227538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877547228.

The product of its digits is 645120, while the sum is 46.

The spelling of 22816227538 in words is "twenty-two billion, eight hundred sixteen million, two hundred twenty-seven thousand, five hundred thirty-eight".