2001010989 has 8 divisors (see below), whose sum is σ = 2668478272. Its totient is φ = 1333775520.

The previous prime is 2001010981. The next prime is 2001011003. The reversal of 2001010989 is 9890101002.

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

It is not a de Polignac number, because 2001010989 - 2³ = 2001010981 is a prime.

It is a Duffinian number.

2001010989 is a modest number, since divided by 10989 gives 2001 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001010981) 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, 36697 + ... + 73134.

It is an arithmetic number, because the mean of its divisors is an integer number (333559784).

Almost surely, 2^2001010989 is an apocalyptic number.

It is an amenable number.

2001010989 is a deficient number, since it is larger than the sum of its proper divisors (667467283).

2001010989 is a wasteful number, since it uses less digits than its factorization.

2001010989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115907.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 2001010989 is about 44732.6613225728. The cubic root of 2001010989 is about 1260.1333085208.

The spelling of 2001010989 in words is "two billion, one million, ten thousand, nine hundred eighty-nine".