2000643109405 has 8 divisors (see below), whose sum is σ = 2418043471200. Its totient is φ = 1588999994256.

The previous prime is 2000643109397. The next prime is 2000643109559. The reversal of 2000643109405 is 5049013460002.

It is a happy number.

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 2000643109405 - 2³ = 2000643109397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1439310895 + ... + 1439312284.

It is an arithmetic number, because the mean of its divisors is an integer number (302255433900).

Almost surely, 2^{2000643109405} is an apocalyptic number.

It is an amenable number.

2000643109405 is a deficient number, since it is larger than the sum of its proper divisors (417400361795).

2000643109405 is a wasteful number, since it uses less digits than its factorization.

2000643109405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878623323.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 2000643109405 its reverse (5049013460002), we get a palindrome (7049656569407).

The spelling of 2000643109405 in words is "two trillion, six hundred forty-three million, one hundred nine thousand, four hundred five".