172806672572 has 12 divisors (see below), whose sum is σ = 309787571856. Its totient is φ = 84295937760.

The previous prime is 172806672539. The next prime is 172806672601. The reversal of 172806672572 is 275276608271.

172806672572 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526849448 + ... + 526849775.

It is an arithmetic number, because the mean of its divisors is an integer number (25815630988).

Almost surely, 2^172806672572 is an apocalyptic number.

It is an amenable number.

172806672572 is a deficient number, since it is larger than the sum of its proper divisors (136980899284).

172806672572 is a wasteful number, since it uses less digits than its factorization.

172806672572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053699268 (or 1053699266 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 53.

The spelling of 172806672572 in words is "one hundred seventy-two billion, eight hundred six million, six hundred seventy-two thousand, five hundred seventy-two".