22509297829 has 8 divisors (see below), whose sum is σ = 23491153152. Its totient is φ = 21527708400.

The previous prime is 22509297827. The next prime is 22509297869. The reversal of 22509297829 is 92879290522.

It is a happy number.

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 22509297829 - 2¹ = 22509297827 is a prime.

It is a super-2 number, since 2×22509297829² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22509297829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22509297821) 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, 117379 + ... + 242479.

It is an arithmetic number, because the mean of its divisors is an integer number (2936394144).

Almost surely, 2^22509297829 is an apocalyptic number.

It is an amenable number.

22509297829 is a deficient number, since it is larger than the sum of its proper divisors (981855323).

22509297829 is a wasteful number, since it uses less digits than its factorization.

22509297829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132947.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 22509297829 in words is "twenty-two billion, five hundred nine million, two hundred ninety-seven thousand, eight hundred twenty-nine".