22179553449 has 4 divisors (see below), whose sum is σ = 29572737936. Its totient is φ = 14786368964.

The previous prime is 22179553447. The next prime is 22179553469. The reversal of 22179553449 is 94435597122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22179553449 - 2¹ = 22179553447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22179553441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3696592239 + ... + 3696592244.

It is an arithmetic number, because the mean of its divisors is an integer number (7393184484).

Almost surely, 2^22179553449 is an apocalyptic number.

It is an amenable number.

22179553449 is a deficient number, since it is larger than the sum of its proper divisors (7393184487).

22179553449 is an equidigital number, since it uses as much as digits as its factorization.

22179553449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7393184486.

The product of its digits is 2721600, while the sum is 51.

The spelling of 22179553449 in words is "twenty-two billion, one hundred seventy-nine million, five hundred fifty-three thousand, four hundred forty-nine".