2001986547321 has 16 divisors (see below), whose sum is σ = 2671027591680. Its totient is φ = 1333801766400.

The previous prime is 2001986547311. The next prime is 2001986547329. The reversal of 2001986547321 is 1237456891002.

It is not a de Polignac number, because 2001986547321 - 2⁵ = 2001986547289 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2001986547329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77131896 + ... + 77157846.

It is an arithmetic number, because the mean of its divisors is an integer number (166939224480).

It is a 1-persistent number, because it is pandigital, but 2⋅2001986547321 = 4003973094642 is not.

Almost surely, 2^{2001986547321} is an apocalyptic number.

It is an amenable number.

2001986547321 is a deficient number, since it is larger than the sum of its proper divisors (669041044359).

2001986547321 is a wasteful number, since it uses less digits than its factorization.

2001986547321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41456.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 2001986547321 in words is "two trillion, one billion, nine hundred eighty-six million, five hundred forty-seven thousand, three hundred twenty-one".