21714617862 has 160 divisors (see below), whose sum is σ = 57730590720. Its totient is φ = 5971734720.

The previous prime is 21714617851. The next prime is 21714617867. The reversal of 21714617862 is 26871641712.

21714617862 is a `hidden beast` number, since 2 + 17 + 14 + 617 + 8 + 6 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21714617867) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3247839 + ... + 3254517.

It is an arithmetic number, because the mean of its divisors is an integer number (360816192).

Almost surely, 2^21714617862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21714617862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28865295360).

21714617862 is an abundant number, since it is smaller than the sum of its proper divisors (36015972858).

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

21714617862 is a wasteful number, since it uses less digits than its factorization.

21714617862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808 (or 6799 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The spelling of 21714617862 in words is "twenty-one billion, seven hundred fourteen million, six hundred seventeen thousand, eight hundred sixty-two".