21314363568 has 20 divisors (see below), whose sum is σ = 55062106008. Its totient is φ = 7104787840.

The previous prime is 21314363561. The next prime is 21314363569. The reversal of 21314363568 is 86536341312.

It is not an unprimeable number, because it can be changed into a prime (21314363561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222024573 + ... + 222024668.

Almost surely, 2^21314363568 is an apocalyptic number.

It is an amenable number.

21314363568 is an abundant number, since it is smaller than the sum of its proper divisors (33747742440).

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

21314363568 is a wasteful number, since it uses less digits than its factorization.

21314363568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444049252 (or 444049246 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The spelling of 21314363568 in words is "twenty-one billion, three hundred fourteen million, three hundred sixty-three thousand, five hundred sixty-eight".