2172725726 has 8 divisors (see below), whose sum is σ = 3259420560. Its totient is φ = 1086252208.

The previous prime is 2172725717. The next prime is 2172725743. The reversal of 2172725726 is 6275272712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28106 + ... + 71661.

It is an arithmetic number, because the mean of its divisors is an integer number (407427570).

Almost surely, 2^2172725726 is an apocalyptic number.

2172725726 is a deficient number, since it is larger than the sum of its proper divisors (1086694834).

2172725726 is a wasteful number, since it uses less digits than its factorization.

2172725726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110658.

The product of its digits is 164640, while the sum is 41.

The square root of 2172725726 is about 46612.5061115577. The cubic root of 2172725726 is about 1295.1944324273.

The spelling of 2172725726 in words is "two billion, one hundred seventy-two million, seven hundred twenty-five thousand, seven hundred twenty-six".