22729570505 has 8 divisors (see below), whose sum is σ = 27299909832. Its totient is φ = 18167372928.

The previous prime is 22729570489. The next prime is 22729570519. The reversal of 22729570505 is 50507592722.

It can be written as a sum of positive squares in 4 ways, for example, as 2743245376 + 19986325129 = 52376^2 + 141373^2 .

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 22729570505 - 2⁴ = 22729570489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2029292 + ... + 2040461.

It is an arithmetic number, because the mean of its divisors is an integer number (3412488729).

Almost surely, 2^22729570505 is an apocalyptic number.

It is an amenable number.

22729570505 is a deficient number, since it is larger than the sum of its proper divisors (4570339327).

22729570505 is a wasteful number, since it uses less digits than its factorization.

22729570505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070875.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 22729570505 in words is "twenty-two billion, seven hundred twenty-nine million, five hundred seventy thousand, five hundred five".