21786422000 has 80 divisors (see below), whose sum is σ = 60205259712. Its totient is φ = 7469625600.

The previous prime is 21786421967. The next prime is 21786422071. The reversal of 21786422000 is 22468712.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 764087 + ... + 792086.

Almost surely, 2^21786422000 is an apocalyptic number.

21786422000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21786422000 is an abundant number, since it is smaller than the sum of its proper divisors (38418837712).

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

21786422000 is a wasteful number, since it uses less digits than its factorization.

21786422000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556203 (or 1556187 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 21786422000 in words is "twenty-one billion, seven hundred eighty-six million, four hundred twenty-two thousand".