22259387779 has 8 divisors (see below), whose sum is σ = 22412203920. Its totient is φ = 22107052416.

The previous prime is 22259387729. The next prime is 22259387807. The reversal of 22259387779 is 97778395222.

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 22259387779 - 2⁷ = 22259387651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22259387729) 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 7 ways as a sum of consecutive naturals, for example, 27034 + ... + 212719.

It is an arithmetic number, because the mean of its divisors is an integer number (2801525490).

Almost surely, 2^22259387779 is an apocalyptic number.

22259387779 is a deficient number, since it is larger than the sum of its proper divisors (152816141).

22259387779 is a wasteful number, since it uses less digits than its factorization.

22259387779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240389.

The product of its digits is 26671680, while the sum is 61.

The spelling of 22259387779 in words is "twenty-two billion, two hundred fifty-nine million, three hundred eighty-seven thousand, seven hundred seventy-nine".