326587868172 has 18 divisors (see below), whose sum is σ = 825541555748. Its totient is φ = 108862622712.

The previous prime is 326587868171. The next prime is 326587868221. The reversal of 326587868172 is 271868785623.

326587868172 is a `hidden beast` number, since 32 + 6 + 587 + 8 + 6 + 8 + 17 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (326587868171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4535942578 + ... + 4535942649.

Almost surely, 2^326587868172 is an apocalyptic number.

It is an amenable number.

326587868172 is an abundant number, since it is smaller than the sum of its proper divisors (498953687576).

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

326587868172 is a wasteful number, since it uses less digits than its factorization.

326587868172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071885237 (or 9071885232 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 326587868172 in words is "three hundred twenty-six billion, five hundred eighty-seven million, eight hundred sixty-eight thousand, one hundred seventy-two".