22618371673 has 4 divisors (see below), whose sum is σ = 22825879780. Its totient is φ = 22410863568.

The previous prime is 22618371661. The next prime is 22618371689. The reversal of 22618371673 is 37617381622.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8196043024 + 14422328649 = 90532^2 + 120093^2 .

It is a cyclic number.

It is not a de Polignac number, because 22618371673 - 2²¹ = 22616274521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22618371473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103753890 + ... + 103754107.

It is an arithmetic number, because the mean of its divisors is an integer number (5706469945).

Almost surely, 2^22618371673 is an apocalyptic number.

It is an amenable number.

22618371673 is a deficient number, since it is larger than the sum of its proper divisors (207508107).

22618371673 is a wasteful number, since it uses less digits than its factorization.

22618371673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207508106.

The product of its digits is 508032, while the sum is 46.

The spelling of 22618371673 in words is "twenty-two billion, six hundred eighteen million, three hundred seventy-one thousand, six hundred seventy-three".