21743523011684 has 24 divisors (see below), whose sum is σ = 38272743855360. Its totient is φ = 10808481917984.

The previous prime is 21743523011659. The next prime is 21743523011713. The reversal of 21743523011684 is 48611032534712.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525044 + ... + 6615339.

It is an arithmetic number, because the mean of its divisors is an integer number (1594697660640).

Almost surely, 2^{21743523011684} is an apocalyptic number.

It is an amenable number.

21743523011684 is a deficient number, since it is larger than the sum of its proper divisors (16529220843676).

21743523011684 is a wasteful number, since it uses less digits than its factorization.

21743523011684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144819 (or 7144817 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 21743523011684 in words is "twenty-one trillion, seven hundred forty-three billion, five hundred twenty-three million, eleven thousand, six hundred eighty-four".