2003821961472 has 216 divisors, whose sum is σ = 6061665861888. Its totient is φ = 635796172800.

The previous prime is 2003821961443. The next prime is 2003821961509. The reversal of 2003821961472 is 2741691283002.

2003821961472 is a `hidden beast` number, since 2 + 0 + 0 + 3 + 8 + 21 + 9 + 614 + 7 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4126903 + ... + 4586825.

Almost surely, 2^{2003821961472} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003821961472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3030832930944).

2003821961472 is an abundant number, since it is smaller than the sum of its proper divisors (4057843900416).

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

2003821961472 is a wasteful number, since it uses less digits than its factorization.

2003821961472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460037 (or 460020 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 2003821961472 in words is "two trillion, three billion, eight hundred twenty-one million, nine hundred sixty-one thousand, four hundred seventy-two".