172113788120 has 16 divisors (see below), whose sum is σ = 387256023360. Its totient is φ = 68845515232.

The previous prime is 172113788081. The next prime is 172113788183. The reversal of 172113788120 is 21887311271.

172113788120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172113788120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2151422312 + ... + 2151422391.

It is an arithmetic number, because the mean of its divisors is an integer number (24203501460).

Almost surely, 2^172113788120 is an apocalyptic number.

172113788120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172113788120 is an abundant number, since it is smaller than the sum of its proper divisors (215142235240).

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

172113788120 is a wasteful number, since it uses less digits than its factorization.

172113788120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302844714 (or 4302844710 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 41.

The spelling of 172113788120 in words is "one hundred seventy-two billion, one hundred thirteen million, seven hundred eighty-eight thousand, one hundred twenty".