2172051270 has 48 divisors (see below), whose sum is σ = 5829512832. Its totient is φ = 560528640.

The previous prime is 2172051269. The next prime is 2172051281. The reversal of 2172051270 is 721502712.

It is a super-2 number, since 2×2172051270² = 9435613439017225800, which 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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386467 + ... + 392046.

It is an arithmetic number, because the mean of its divisors is an integer number (121448184).

Almost surely, 2^2172051270 is an apocalyptic number.

2172051270 is an abundant number, since it is smaller than the sum of its proper divisors (3657461562).

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

2172051270 is a wasteful number, since it uses less digits than its factorization.

2172051270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778557 (or 778554 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 2172051270 is about 46605.2708392516. The cubic root of 2172051270 is about 1295.0604007744.

Adding to 2172051270 its reverse (721502712), we get a palindrome (2893553982).

The spelling of 2172051270 in words is "two billion, one hundred seventy-two million, fifty-one thousand, two hundred seventy".