22149144793 has 4 divisors (see below), whose sum is σ = 22149776308. Its totient is φ = 22148513280.

The previous prime is 22149144791. The next prime is 22149144799. The reversal of 22149144793 is 39744194122.

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 18476421184 + 3672723609 = 135928^2 + 60603^2 .

It is a cyclic number.

It is not a de Polignac number, because 22149144793 - 2¹ = 22149144791 is a prime.

It is a super-2 number, since 2×22149144793² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22149144791) 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, 259848 + ... + 334393.

It is an arithmetic number, because the mean of its divisors is an integer number (5537444077).

Almost surely, 2^22149144793 is an apocalyptic number.

It is an amenable number.

22149144793 is a deficient number, since it is larger than the sum of its proper divisors (631515).

22149144793 is an equidigital number, since it uses as much as digits as its factorization.

22149144793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631514.

The product of its digits is 435456, while the sum is 46.

The spelling of 22149144793 in words is "twenty-two billion, one hundred forty-nine million, one hundred forty-four thousand, seven hundred ninety-three".