21382848546 has 8 divisors (see below), whose sum is σ = 42765697104. Its totient is φ = 7127616180.

The previous prime is 21382848533. The next prime is 21382848593. The reversal of 21382848546 is 64584828312.

It is a sphenic number, since it is the product of 3 distinct primes.

21382848546 is an admirable 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, 1781904040 + ... + 1781904051.

It is an arithmetic number, because the mean of its divisors is an integer number (5345712138).

Almost surely, 2^21382848546 is an apocalyptic number.

21382848546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21382848546 is a wasteful number, since it uses less digits than its factorization.

21382848546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563808096.

The product of its digits is 2949120, while the sum is 51.

The spelling of 21382848546 in words is "twenty-one billion, three hundred eighty-two million, eight hundred forty-eight thousand, five hundred forty-six".