2172992712 has 128 divisors (see below), whose sum is σ = 6240706560. Its totient is φ = 624081920.

The previous prime is 2172992711. The next prime is 2172992753.

2172992712 is nontrivially palindromic in base 10.

It is a super-4 number, since 4×2172992712⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2172992711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684553 + ... + 687719.

It is an arithmetic number, because the mean of its divisors is an integer number (48755520).

Almost surely, 2^2172992712 is an apocalyptic number.

2172992712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2172992712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3120353280).

2172992712 is an abundant number, since it is smaller than the sum of its proper divisors (4067713848).

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

2172992712 is a wasteful number, since it uses less digits than its factorization.

2172992712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323 (or 3319 counting only the distinct ones).

The product of its digits is 63504, while the sum is 42.

The square root of 2172992712 is about 46615.3699116504. The cubic root of 2172992712 is about 1295.2474817091.

The spelling of 2172992712 in words is "two billion, one hundred seventy-two million, nine hundred ninety-two thousand, seven hundred twelve".