1841531483640 has 256 divisors, whose sum is σ = 5746997329920. Its totient is φ = 471700316160.

The previous prime is 1841531483581. The next prime is 1841531483651. The reversal of 1841531483640 is 463841351481.

It is a self number, because there is not a number n which added to its sum of digits gives 1841531483640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 218005897 + ... + 218014343.

It is an arithmetic number, because the mean of its divisors is an integer number (22449208320).

Almost surely, 2^{1841531483640} is an apocalyptic number.

1841531483640 is a gapful number since it is divisible by the number (10) 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 1841531483640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2873498664960).

1841531483640 is an abundant number, since it is smaller than the sum of its proper divisors (3905465846280).

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

1841531483640 is a wasteful number, since it uses less digits than its factorization.

1841531483640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9182 (or 9178 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 1841531483640 in words is "one trillion, eight hundred forty-one billion, five hundred thirty-one million, four hundred eighty-three thousand, six hundred forty".