1841878794240 has 640 divisors, whose sum is σ = 6686049744000. Its totient is φ = 480918896640.

The previous prime is 1841878794221. The next prime is 1841878794263. The reversal of 1841878794240 is 424978781481.

1841878794240 is a `hidden beast` number, since 1 + 8 + 418 + 78 + 79 + 42 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3751280395 + ... + 3751280885.

It is an arithmetic number, because the mean of its divisors is an integer number (10446952725).

Almost surely, 2^{1841878794240} is an apocalyptic number.

1841878794240 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 1841878794240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3343024872000).

1841878794240 is an abundant number, since it is smaller than the sum of its proper divisors (4844170949760).

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

1841878794240 is an frugal number, since it uses more digits than its factorization.

1841878794240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 63.

The spelling of 1841878794240 in words is "one trillion, eight hundred forty-one billion, eight hundred seventy-eight million, seven hundred ninety-four thousand, two hundred forty".