217425462168 has 32 divisors (see below), whose sum is σ = 543669572160. Its totient is φ = 72461031840.

The previous prime is 217425462157. The next prime is 217425462211. The reversal of 217425462168 is 861264524712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756538 + ... + 1003593.

It is an arithmetic number, because the mean of its divisors is an integer number (16989674130).

Almost surely, 2^217425462168 is an apocalyptic number.

It is an amenable number.

217425462168 is an abundant number, since it is smaller than the sum of its proper divisors (326244109992).

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

217425462168 is a wasteful number, since it uses less digits than its factorization.

217425462168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765287 (or 1765283 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The spelling of 217425462168 in words is "two hundred seventeen billion, four hundred twenty-five million, four hundred sixty-two thousand, one hundred sixty-eight".