22241858778 has 48 divisors (see below), whose sum is σ = 51363464256. Its totient is φ = 6931612800.

The previous prime is 22241858759. The next prime is 22241858791. The reversal of 22241858778 is 87785814222.

22241858778 is a `hidden beast` number, since 22 + 24 + 18 + 587 + 7 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194476 + ... + 286887.

It is an arithmetic number, because the mean of its divisors is an integer number (1070072172).

Almost surely, 2^22241858778 is an apocalyptic number.

22241858778 is an abundant number, since it is smaller than the sum of its proper divisors (29121605478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22241858778 is a wasteful number, since it uses less digits than its factorization.

22241858778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481539 (or 481536 counting only the distinct ones).

The product of its digits is 4014080, while the sum is 54.

The spelling of 22241858778 in words is "twenty-two billion, two hundred forty-one million, eight hundred fifty-eight thousand, seven hundred seventy-eight".