21094824704 has 36 divisors (see below), whose sum is σ = 42174301680. Its totient is φ = 10530616320.

The previous prime is 21094824671. The next prime is 21094824749. The reversal of 21094824704 is 40742849012.

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, 96242 + ... + 226830.

It is an arithmetic number, because the mean of its divisors is an integer number (1171508380).

Almost surely, 2^21094824704 is an apocalyptic number.

It is an amenable number.

21094824704 is a deficient number, since it is larger than the sum of its proper divisors (21079476976).

21094824704 is an equidigital number, since it uses as much as digits as its factorization.

21094824704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131236 (or 131222 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 21094824704 in words is "twenty-one billion, ninety-four million, eight hundred twenty-four thousand, seven hundred four".