22815243019 has 4 divisors (see below), whose sum is σ = 22838596344. Its totient is φ = 22791889696.

The previous prime is 22815243013. The next prime is 22815243029. The reversal of 22815243019 is 91034251822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22815243019 - 2⁹ = 22815242507 is a prime.

It is a super-2 number, since 2×22815243019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22815243013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11675197 + ... + 11677150.

It is an arithmetic number, because the mean of its divisors is an integer number (5709649086).

Almost surely, 2^22815243019 is an apocalyptic number.

22815243019 is a deficient number, since it is larger than the sum of its proper divisors (23353325).

22815243019 is an equidigital number, since it uses as much as digits as its factorization.

22815243019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23353324.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 22815243019 in words is "twenty-two billion, eight hundred fifteen million, two hundred forty-three thousand, nineteen".