2172481413228 has 720 divisors, whose sum is σ = 7209252019200. Its totient is φ = 566643651840.

The previous prime is 2172481413203. The next prime is 2172481413337. The reversal of 2172481413228 is 8223141842712.

2172481413228 is a `hidden beast` number, since 2 + 1 + 7 + 2 + 4 + 8 + 1 + 413 + 228 = 666.

It is a super-2 number, since 2×2172481413228² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 3544015050 + ... + 3544015662.

Almost surely, 2^{2172481413228} is an apocalyptic number.

2172481413228 is a gapful number since it is divisible by the number (28) 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 2172481413228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3604626009600).

2172481413228 is an abundant number, since it is smaller than the sum of its proper divisors (5036770605972).

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

2172481413228 is a wasteful number, since it uses less digits than its factorization.

2172481413228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1054 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The spelling of 2172481413228 in words is "two trillion, one hundred seventy-two billion, four hundred eighty-one million, four hundred thirteen thousand, two hundred twenty-eight".