22754997218 has 4 divisors (see below), whose sum is σ = 34132495830. Its totient is φ = 11377498608.

The previous prime is 22754997217. The next prime is 22754997257. The reversal of 22754997218 is 81279945722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20359579969 + 2395417249 = 142687^2 + 48943^2 .

It is not an unprimeable number, because it can be changed into a prime (22754997217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5688749303 + ... + 5688749306.

Almost surely, 2^22754997218 is an apocalyptic number.

22754997218 is a deficient number, since it is larger than the sum of its proper divisors (11377498612).

22754997218 is a wasteful number, since it uses less digits than its factorization.

22754997218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11377498611.

The product of its digits is 5080320, while the sum is 56.

The spelling of 22754997218 in words is "twenty-two billion, seven hundred fifty-four million, nine hundred ninety-seven thousand, two hundred eighteen".