21717443002 has 16 divisors (see below), whose sum is σ = 33338733120. Its totient is φ = 10604607552.

The previous prime is 21717442997. The next prime is 21717443021. The reversal of 21717443002 is 20034471712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732723 + ... + 761785.

It is an arithmetic number, because the mean of its divisors is an integer number (2083670820).

Almost surely, 2^21717443002 is an apocalyptic number.

21717443002 is a deficient number, since it is larger than the sum of its proper divisors (11621290118).

21717443002 is a wasteful number, since it uses less digits than its factorization.

21717443002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37797.

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 21717443002 in words is "twenty-one billion, seven hundred seventeen million, four hundred forty-three thousand, two".