22742824723 has 8 divisors (see below), whose sum is σ = 24083248320. Its totient is φ = 21402691200.

The previous prime is 22742824691. The next prime is 22742824739. The reversal of 22742824723 is 32742824722.

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 22742824723 - 2⁵ = 22742824691 is a prime.

It is a super-2 number, since 2×22742824723² (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 22742824723.

It is not an unprimeable number, because it can be changed into a prime (22742822723) 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, 100758 + ... + 235876.

It is an arithmetic number, because the mean of its divisors is an integer number (3010406040).

Almost surely, 2^22742824723 is an apocalyptic number.

22742824723 is a deficient number, since it is larger than the sum of its proper divisors (1340423597).

22742824723 is a wasteful number, since it uses less digits than its factorization.

22742824723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145037.

The product of its digits is 602112, while the sum is 43.

Subtracting 22742824723 from its reverse (32742824722), we obtain a palindrome (9999999999).

The spelling of 22742824723 in words is "twenty-two billion, seven hundred forty-two million, eight hundred twenty-four thousand, seven hundred twenty-three".