2181883681460 has 48 divisors (see below), whose sum is σ = 5238335633664. Its totient is φ = 747815148288.

The previous prime is 2181883681459. The next prime is 2181883681463. The reversal of 2181883681460 is 641863881812.

It is a super-3 number, since 3×2181883681460³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2181883681396 and 2181883681405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2181883681463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2294969 + ... + 3103328.

It is an arithmetic number, because the mean of its divisors is an integer number (109131992368).

Almost surely, 2^{2181883681460} is an apocalyptic number.

2181883681460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2181883681460 is an abundant number, since it is smaller than the sum of its proper divisors (3056451952204).

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

2181883681460 is a wasteful number, since it uses less digits than its factorization.

2181883681460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5401200 (or 5401198 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 56.

The spelling of 2181883681460 in words is "two trillion, one hundred eighty-one billion, eight hundred eighty-three million, six hundred eighty-one thousand, four hundred sixty".