22779557359 has 4 divisors (see below), whose sum is σ = 24531831016. Its totient is φ = 21027283704.

The previous prime is 22779557347. The next prime is 22779557389. The reversal of 22779557359 is 95375597722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95375597722 = 2 ⋅47687798861.

It is a cyclic number.

It is not a de Polignac number, because 22779557359 - 2⁵ = 22779557327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22779557297 and 22779557306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22779557389) 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, 876136809 + ... + 876136834.

It is an arithmetic number, because the mean of its divisors is an integer number (6132957754).

Almost surely, 2^22779557359 is an apocalyptic number.

22779557359 is a deficient number, since it is larger than the sum of its proper divisors (1752273657).

22779557359 is a wasteful number, since it uses less digits than its factorization.

22779557359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752273656.

The product of its digits is 41674500, while the sum is 61.

The spelling of 22779557359 in words is "twenty-two billion, seven hundred seventy-nine million, five hundred fifty-seven thousand, three hundred fifty-nine".