1811434582668 has 24 divisors (see below), whose sum is σ = 4268529019440. Its totient is φ = 597833195200.

The previous prime is 1811434582621. The next prime is 1811434582753. The reversal of 1811434582668 is 8662854341181.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747290283 + ... + 747292706.

It is an arithmetic number, because the mean of its divisors is an integer number (177855375810).

Almost surely, 2^{1811434582668} is an apocalyptic number.

It is an amenable number.

1811434582668 is an abundant number, since it is smaller than the sum of its proper divisors (2457094436772).

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

1811434582668 is a wasteful number, since it uses less digits than its factorization.

1811434582668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494583097 (or 1494583095 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 57.

The spelling of 1811434582668 in words is "one trillion, eight hundred eleven billion, four hundred thirty-four million, five hundred eighty-two thousand, six hundred sixty-eight".