21063909714 has 16 divisors (see below), whose sum is σ = 42129249120. Its totient is φ = 7021064960.

The previous prime is 21063909697. The next prime is 21063909719. The reversal of 21063909714 is 41790936012.

It is not an unprimeable number, because it can be changed into a prime (21063909719) 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, 287602 + ... + 353330.

It is an arithmetic number, because the mean of its divisors is an integer number (2633078070).

Almost surely, 2^21063909714 is an apocalyptic number.

21063909714 is an abundant number, since it is smaller than the sum of its proper divisors (21065339406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21063909714 is a wasteful number, since it uses less digits than its factorization.

21063909714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119145.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 21063909714 in words is "twenty-one billion, sixty-three million, nine hundred nine thousand, seven hundred fourteen".