22278708479 has 8 divisors (see below), whose sum is σ = 22844338608. Its totient is φ = 21719934720.

The previous prime is 22278708467. The next prime is 22278708497. The reversal of 22278708479 is 97480787222.

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 22278708479 - 2²⁸ = 22010273023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22278708449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1707512 + ... + 1720509.

It is an arithmetic number, because the mean of its divisors is an integer number (2855542326).

Almost surely, 2^22278708479 is an apocalyptic number.

22278708479 is a deficient number, since it is larger than the sum of its proper divisors (565630129).

22278708479 is an equidigital number, since it uses as much as digits as its factorization.

22278708479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428185.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 22278708479 in words is "twenty-two billion, two hundred seventy-eight million, seven hundred eight thousand, four hundred seventy-nine".