22189139509 has 8 divisors (see below), whose sum is σ = 22270390848. Its totient is φ = 22107988320.

The previous prime is 22189139507. The next prime is 22189139513. The reversal of 22189139509 is 90593198122.

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

It is a cyclic number.

It is not a de Polignac number, because 22189139509 - 2¹ = 22189139507 is a prime.

It is a super-2 number, since 2×22189139509² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22189139503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434184 + ... + 482590.

It is an arithmetic number, because the mean of its divisors is an integer number (2783798856).

Almost surely, 2^22189139509 is an apocalyptic number.

It is an amenable number.

22189139509 is a deficient number, since it is larger than the sum of its proper divisors (81251339).

22189139509 is a wasteful number, since it uses less digits than its factorization.

22189139509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50075.

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 22189139509 in words is "twenty-two billion, one hundred eighty-nine million, one hundred thirty-nine thousand, five hundred nine".