1864803840000 has 260 divisors, whose sum is σ = 6213290716776. Its totient is φ = 497278976000.

The previous prime is 1864803839917. The next prime is 1864803840017. The reversal of 1864803840000 is 483084681.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7558594 + ... + 7801406.

Almost surely, 2^{1864803840000} is an apocalyptic number.

1864803840000 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 1864803840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3106645358388).

1864803840000 is an abundant number, since it is smaller than the sum of its proper divisors (4348486876776).

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

1864803840000 is an frugal number, since it uses more digits than its factorization.

1864803840000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242860 (or 242823 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 1864803840000 in words is "one trillion, eight hundred sixty-four billion, eight hundred three million, eight hundred forty thousand".