21413555512 has 16 divisors (see below), whose sum is σ = 40166380800. Its totient is φ = 10702520640.

The previous prime is 21413555489. The next prime is 21413555531. The reversal of 21413555512 is 21555531412.

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 3 ways as a sum of consecutive naturals, for example, 510712 + ... + 551047.

It is an arithmetic number, because the mean of its divisors is an integer number (2510398800).

Almost surely, 2^21413555512 is an apocalyptic number.

It is an amenable number.

21413555512 is a deficient number, since it is larger than the sum of its proper divisors (18752825288).

21413555512 is a wasteful number, since it uses less digits than its factorization.

21413555512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064286 (or 1064282 counting only the distinct ones).

The product of its digits is 30000, while the sum is 34.

The spelling of 21413555512 in words is "twenty-one billion, four hundred thirteen million, five hundred fifty-five thousand, five hundred twelve".