21704700268 has 6 divisors (see below), whose sum is σ = 37983225476. Its totient is φ = 10852350132.

The previous prime is 21704700257. The next prime is 21704700271. The reversal of 21704700268 is 86200740712.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2713087530 + ... + 2713087537.

Almost surely, 2^21704700268 is an apocalyptic number.

It is an amenable number.

21704700268 is a deficient number, since it is larger than the sum of its proper divisors (16278525208).

21704700268 is a wasteful number, since it uses less digits than its factorization.

21704700268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426175071 (or 5426175069 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 21704700268 in words is "twenty-one billion, seven hundred four million, seven hundred thousand, two hundred sixty-eight".