1818440713684 has 48 divisors (see below), whose sum is σ = 3769683523200. Its totient is φ = 750979748736.

The previous prime is 1818440713673. The next prime is 1818440713709. The reversal of 1818440713684 is 4863170448181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1786554 + ... + 2613169.

It is an arithmetic number, because the mean of its divisors is an integer number (78535073400).

Almost surely, 2^{1818440713684} is an apocalyptic number.

1818440713684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1818440713684 is an abundant number, since it is smaller than the sum of its proper divisors (1951242809516).

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

1818440713684 is a wasteful number, since it uses less digits than its factorization.

1818440713684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400272 (or 4400270 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 1818440713684 in words is "one trillion, eight hundred eighteen billion, four hundred forty million, seven hundred thirteen thousand, six hundred eighty-four".