172235381324808 has 32 divisors (see below), whose sum is σ = 430588957196160. Its totient is φ = 57411726590400.

The previous prime is 172235381324801. The next prime is 172235381324821. The reversal of 172235381324808 is 808423183532271.

It is not an unprimeable number, because it can be changed into a prime (172235381324801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19456966 + ... + 26889482.

It is an arithmetic number, because the mean of its divisors is an integer number (13455904912380).

Almost surely, 2^{172235381324808} is an apocalyptic number.

It is an amenable number.

172235381324808 is an abundant number, since it is smaller than the sum of its proper divisors (258353575871352).

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

172235381324808 is a wasteful number, since it uses less digits than its factorization.

172235381324808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8398077 (or 8398073 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 172235381324808 in words is "one hundred seventy-two trillion, two hundred thirty-five billion, three hundred eighty-one million, three hundred twenty-four thousand, eight hundred eight".