22125782579 has 4 divisors (see below), whose sum is σ = 22328771520. Its totient is φ = 21922793640.

The previous prime is 22125782537. The next prime is 22125782593. The reversal of 22125782579 is 97528752122.

It is a happy number.

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 22125782579 - 2¹⁶ = 22125717043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22125782599) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 101494307 + ... + 101494524.

It is an arithmetic number, because the mean of its divisors is an integer number (5582192880).

Almost surely, 2^22125782579 is an apocalyptic number.

22125782579 is a deficient number, since it is larger than the sum of its proper divisors (202988941).

22125782579 is a wasteful number, since it uses less digits than its factorization.

22125782579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202988940.

The product of its digits is 1411200, while the sum is 50.

The spelling of 22125782579 in words is "twenty-two billion, one hundred twenty-five million, seven hundred eighty-two thousand, five hundred seventy-nine".