21786846232 has 16 divisors (see below), whose sum is σ = 42626438640. Its totient is φ = 10419795936.

The previous prime is 21786846229. The next prime is 21786846253. The reversal of 21786846232 is 23264868712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59203203 + ... + 59203570.

It is an arithmetic number, because the mean of its divisors is an integer number (2664152415).

Almost surely, 2^21786846232 is an apocalyptic number.

It is an amenable number.

21786846232 is a deficient number, since it is larger than the sum of its proper divisors (20839592408).

21786846232 is a wasteful number, since it uses less digits than its factorization.

21786846232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118406802 (or 118406798 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The spelling of 21786846232 in words is "twenty-one billion, seven hundred eighty-six million, eight hundred forty-six thousand, two hundred thirty-two".