21703274700 has 72 divisors (see below), whose sum is σ = 63442262352. Its totient is φ = 5727866880.

The previous prime is 21703274687. The next prime is 21703274737. The reversal of 21703274700 is 747230712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343809 + ... + 402008.

Almost surely, 2^21703274700 is an apocalyptic number.

21703274700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21703274700 is an abundant number, since it is smaller than the sum of its proper divisors (41738987652).

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

21703274700 is a wasteful number, since it uses less digits than its factorization.

21703274700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745931 (or 745924 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 33.

The spelling of 21703274700 in words is "twenty-one billion, seven hundred three million, two hundred seventy-four thousand, seven hundred".