1804325973840 has 320 divisors, whose sum is σ = 6703642606080. Its totient is φ = 443433553920.

The previous prime is 1804325973833. The next prime is 1804325973859. The reversal of 1804325973840 is 483795234081.

It is a happy number.

1804325973840 is a `hidden beast` number, since 1 + 8 + 0 + 4 + 3 + 2 + 597 + 3 + 8 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 17667564 + ... + 17769396.

It is an arithmetic number, because the mean of its divisors is an integer number (20948883144).

Almost surely, 2^{1804325973840} is an apocalyptic number.

1804325973840 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 1804325973840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3351821303040).

1804325973840 is an abundant number, since it is smaller than the sum of its proper divisors (4899316632240).

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

1804325973840 is a wasteful number, since it uses less digits than its factorization.

1804325973840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102499 (or 102487 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 1804325973840 in words is "one trillion, eight hundred four billion, three hundred twenty-five million, nine hundred seventy-three thousand, eight hundred forty".