2001846563 has 8 divisors (see below), whose sum is σ = 2026275696. Its totient is φ = 1977508000.

The previous prime is 2001846533. The next prime is 2001846571. The reversal of 2001846563 is 3656481002.

It is a Cunningham number, because it is equal to 44742²-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001846563 - 2⁶ = 2001846499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001846533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22373 + ... + 67113.

It is an arithmetic number, because the mean of its divisors is an integer number (253284462).

Almost surely, 2^2001846563 is an apocalyptic number.

2001846563 is a deficient number, since it is larger than the sum of its proper divisors (24429133).

2001846563 is a wasteful number, since it uses less digits than its factorization.

2001846563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45285.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2001846563 is about 44741.9999888248. Note that the first 4 decimals coincide. The cubic root of 2001846563 is about 1260.3086845530.

The spelling of 2001846563 in words is "two billion, one million, eight hundred forty-six thousand, five hundred sixty-three".