21383202268 has 6 divisors (see below), whose sum is σ = 37420603976. Its totient is φ = 10691601132.

The previous prime is 21383202257. The next prime is 21383202307. The reversal of 21383202268 is 86220238312.

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 as a sum of consecutive naturals, namely, 2672900280 + ... + 2672900287.

Almost surely, 2^21383202268 is an apocalyptic number.

It is an amenable number.

21383202268 is a deficient number, since it is larger than the sum of its proper divisors (16037401708).

21383202268 is a wasteful number, since it uses less digits than its factorization.

21383202268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345800571 (or 5345800569 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 21383202268 in words is "twenty-one billion, three hundred eighty-three million, two hundred two thousand, two hundred sixty-eight".