21334224764 has 12 divisors (see below), whose sum is σ = 37335946704. Its totient is φ = 10666811424.

The previous prime is 21334224731. The next prime is 21334224773. The reversal of 21334224764 is 46742243312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181904 + ... + 275240.

It is an arithmetic number, because the mean of its divisors is an integer number (3111328892).

Almost surely, 2^21334224764 is an apocalyptic number.

It is an amenable number.

21334224764 is a deficient number, since it is larger than the sum of its proper divisors (16001721940).

21334224764 is a wasteful number, since it uses less digits than its factorization.

21334224764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150484 (or 150482 counting only the distinct ones).

The product of its digits is 193536, while the sum is 38.

The spelling of 21334224764 in words is "twenty-one billion, three hundred thirty-four million, two hundred twenty-four thousand, seven hundred sixty-four".