21432330607 has 8 divisors (see below), whose sum is σ = 22231800000. Its totient is φ = 20636889504.

The previous prime is 21432330589. The next prime is 21432330617. The reversal of 21432330607 is 70603323412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21432330607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21432330617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996232 + ... + 1017517.

It is an arithmetic number, because the mean of its divisors is an integer number (2778975000).

Almost surely, 2^21432330607 is an apocalyptic number.

21432330607 is a deficient number, since it is larger than the sum of its proper divisors (799469393).

21432330607 is a wasteful number, since it uses less digits than its factorization.

21432330607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014145.

The product of its (nonzero) digits is 18144, while the sum is 31.

The spelling of 21432330607 in words is "twenty-one billion, four hundred thirty-two million, three hundred thirty thousand, six hundred seven".