22149144789 has 4 divisors (see below), whose sum is σ = 29532193056. Its totient is φ = 14766096524.

The previous prime is 22149144757. The next prime is 22149144791. The reversal of 22149144789 is 98744194122.

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 22149144789 - 2⁵ = 22149144757 is a prime.

It is a super-2 number, since 2×22149144789² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22149144799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3691524129 + ... + 3691524134.

It is an arithmetic number, because the mean of its divisors is an integer number (7383048264).

Almost surely, 2^22149144789 is an apocalyptic number.

It is an amenable number.

22149144789 is a deficient number, since it is larger than the sum of its proper divisors (7383048267).

22149144789 is an equidigital number, since it uses as much as digits as its factorization.

22149144789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7383048266.

The product of its digits is 1161216, while the sum is 51.

The spelling of 22149144789 in words is "twenty-two billion, one hundred forty-nine million, one hundred forty-four thousand, seven hundred eighty-nine".