2180843725824 has 99 divisors (see below), whose sum is σ = 6297548314603. Its totient is φ = 726900652032.

The previous prime is 2180843725783. The next prime is 2180843725849. The reversal of 2180843725824 is 4285273480812.

It is a happy number.

The square root of 2180843725824 is 1476768.

It is a perfect power (a square), and thus also a powerful number.

2180843725824 is a `hidden beast` number, since 2 + 18 + 0 + 8 + 43 + 7 + 2 + 582 + 4 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 141762037 + ... + 141777419.

Almost surely, 2^{2180843725824} is an apocalyptic number.

2180843725824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

2180843725824 is the 1476768-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2180843725824

2180843725824 is an abundant number, since it is smaller than the sum of its proper divisors (4116704588779).

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

2180843725824 is an frugal number, since it uses more digits than its factorization.

2180843725824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30792 (or 15388 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 54.

The spelling of 2180843725824 in words is "two trillion, one hundred eighty billion, eight hundred forty-three million, seven hundred twenty-five thousand, eight hundred twenty-four".