2172726272 has 22 divisors (see below), whose sum is σ = 4343332788. Its totient is φ = 1086362624.

The previous prime is 2172726263. The next prime is 2172726299. The reversal of 2172726272 is 2726272712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059878 + ... + 1061925.

Almost surely, 2^2172726272 is an apocalyptic number.

It is an amenable number.

2172726272 is a deficient number, since it is larger than the sum of its proper divisors (2170606516).

2172726272 is an equidigital number, since it uses as much as digits as its factorization.

2172726272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121823 (or 2121805 counting only the distinct ones).

The product of its digits is 65856, while the sum is 38.

The square root of 2172726272 is about 46612.5119683546. The cubic root of 2172726272 is about 1295.1945409202.

Adding to 2172726272 its reverse (2726272712), we get a palindrome (4898998984).

The spelling of 2172726272 in words is "two billion, one hundred seventy-two million, seven hundred twenty-six thousand, two hundred seventy-two".