21708160468 has 12 divisors (see below), whose sum is σ = 37995783840. Its totient is φ = 10852222232.

The previous prime is 21708160427. The next prime is 21708160553. The reversal of 21708160468 is 86406180712.

It is a congruent number.

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, 438046 + ... + 485077.

It is an arithmetic number, because the mean of its divisors is an integer number (3166315320).

Almost surely, 2^21708160468 is an apocalyptic number.

It is an amenable number.

21708160468 is a deficient number, since it is larger than the sum of its proper divisors (16287623372).

21708160468 is a wasteful number, since it uses less digits than its factorization.

21708160468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929006 (or 929004 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 21708160468 in words is "twenty-one billion, seven hundred eight million, one hundred sixty thousand, four hundred sixty-eight".