22730839729 has 4 divisors (see below), whose sum is σ = 24479365876. Its totient is φ = 20982313584.

The previous prime is 22730839727. The next prime is 22730839739. The reversal of 22730839729 is 92793803722.

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 14299376400 + 8431463329 = 119580^2 + 91823^2 .

It is a cyclic number.

It is not a de Polignac number, because 22730839729 - 2¹ = 22730839727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22730839727) 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, 874263054 + ... + 874263079.

It is an arithmetic number, because the mean of its divisors is an integer number (6119841469).

Almost surely, 2^22730839729 is an apocalyptic number.

It is an amenable number.

22730839729 is a deficient number, since it is larger than the sum of its proper divisors (1748526147).

22730839729 is a wasteful number, since it uses less digits than its factorization.

22730839729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748526146.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 22730839729 in words is "twenty-two billion, seven hundred thirty million, eight hundred thirty-nine thousand, seven hundred twenty-nine".