22172593449 has 8 divisors (see below), whose sum is σ = 29564184160. Its totient is φ = 14781365856.

The previous prime is 22172593441. The next prime is 22172593459. The reversal of 22172593449 is 94439527122.

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

It is not a de Polignac number, because 22172593449 - 2³ = 22172593441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22172593398 and 22172593407.

It is not an unprimeable number, because it can be changed into a prime (22172593441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124917 + ... + 244845.

It is an arithmetic number, because the mean of its divisors is an integer number (3695523020).

Almost surely, 2^22172593449 is an apocalyptic number.

It is an amenable number.

22172593449 is a deficient number, since it is larger than the sum of its proper divisors (7391590711).

22172593449 is a wasteful number, since it uses less digits than its factorization.

22172593449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181559.

The product of its digits is 1088640, while the sum is 48.

The spelling of 22172593449 in words is "twenty-two billion, one hundred seventy-two million, five hundred ninety-three thousand, four hundred forty-nine".