2001839603964 has 48 divisors (see below), whose sum is σ = 4920079920000. Its totient is φ = 631738046016.

The previous prime is 2001839603963. The next prime is 2001839604041. The reversal of 2001839603964 is 4693069381002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001839603963) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2586847 + ... + 3270390.

It is an arithmetic number, because the mean of its divisors is an integer number (102501665000).

Almost surely, 2^{2001839603964} is an apocalyptic number.

It is an amenable number.

2001839603964 is an abundant number, since it is smaller than the sum of its proper divisors (2918240316036).

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

2001839603964 is a wasteful number, since it uses less digits than its factorization.

2001839603964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858762 (or 5858760 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 2001839603964 in words is "two trillion, one billion, eight hundred thirty-nine million, six hundred three thousand, nine hundred sixty-four".