217432613104 has 80 divisors (see below), whose sum is σ = 509874526656. Its totient is φ = 87687475200.

The previous prime is 217432613081. The next prime is 217432613119. The reversal of 217432613104 is 401316234712.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 217432613104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19302834 + ... + 19314094.

Almost surely, 2^217432613104 is an apocalyptic number.

It is an amenable number.

217432613104 is an abundant number, since it is smaller than the sum of its proper divisors (292441913552).

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

217432613104 is a wasteful number, since it uses less digits than its factorization.

217432613104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21434 (or 21428 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

Adding to 217432613104 its reverse (401316234712), we get a palindrome (618748847816).

The spelling of 217432613104 in words is "two hundred seventeen billion, four hundred thirty-two million, six hundred thirteen thousand, one hundred four".