22437000172 has 6 divisors (see below), whose sum is σ = 39264750308. Its totient is φ = 11218500084.

The previous prime is 22437000161. The next prime is 22437000199. The reversal of 22437000172 is 27100073422.

It is a self number, because there is not a number n which added to its sum of digits gives 22437000172.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2804625018 + ... + 2804625025.

Almost surely, 2^22437000172 is an apocalyptic number.

It is an amenable number.

22437000172 is a deficient number, since it is larger than the sum of its proper divisors (16827750136).

22437000172 is a wasteful number, since it uses less digits than its factorization.

22437000172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5609250047 (or 5609250045 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

Adding to 22437000172 its reverse (27100073422), we get a palindrome (49537073594).

The spelling of 22437000172 in words is "twenty-two billion, four hundred thirty-seven million, one hundred seventy-two", and thus it is an aban number.