172426016672 has 144 divisors (see below), whose sum is σ = 420714423360. Its totient is φ = 68112285696.

The previous prime is 172426016669. The next prime is 172426016771. The reversal of 172426016672 is 276610624271.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29108303 + ... + 29114225.

It is an arithmetic number, because the mean of its divisors is an integer number (2921627940).

Almost surely, 2^172426016672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172426016672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210357211680).

172426016672 is an abundant number, since it is smaller than the sum of its proper divisors (248288406688).

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

172426016672 is a wasteful number, since it uses less digits than its factorization.

172426016672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735 (or 6714 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 172426016672 in words is "one hundred seventy-two billion, four hundred twenty-six million, sixteen thousand, six hundred seventy-two".