22778419900 has 18 divisors (see below), whose sum is σ = 49429171400. Its totient is φ = 9111367920.

The previous prime is 22778419883. The next prime is 22778419921. The reversal of 22778419900 is 991487722.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113892000 + ... + 113892199.

Almost surely, 2^22778419900 is an apocalyptic number.

22778419900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22778419900 is an abundant number, since it is smaller than the sum of its proper divisors (26650751500).

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

22778419900 is a wasteful number, since it uses less digits than its factorization.

22778419900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227784213 (or 227784206 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 22778419900 in words is "twenty-two billion, seven hundred seventy-eight million, four hundred nineteen thousand, nine hundred".