172701216852 has 24 divisors (see below), whose sum is σ = 407123833536. Its totient is φ = 56973596928.

The previous prime is 172701216847. The next prime is 172701216859. The reversal of 172701216852 is 258612107271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172701216859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74183208 + ... + 74185535.

It is an arithmetic number, because the mean of its divisors is an integer number (16963493064).

Almost surely, 2^172701216852 is an apocalyptic number.

172701216852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172701216852 is an abundant number, since it is smaller than the sum of its proper divisors (234422616684).

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

172701216852 is a wasteful number, since it uses less digits than its factorization.

172701216852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148368847 (or 148368845 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 42.

The spelling of 172701216852 in words is "one hundred seventy-two billion, seven hundred one million, two hundred sixteen thousand, eight hundred fifty-two".