2004642643 has 16 divisors (see below), whose sum is σ = 2100049056. Its totient is φ = 1911951360.

The previous prime is 2004642589. The next prime is 2004642677. The reversal of 2004642643 is 3462464002.

It is not a de Polignac number, because 2004642643 - 2⁹ = 2004642131 is a prime.

It is a super-2 number, since 2×2004642643² = 8037184252268050898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2004642043) 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, 327055 + ... + 333127.

It is an arithmetic number, because the mean of its divisors is an integer number (131253066).

Almost surely, 2^2004642643 is an apocalyptic number.

2004642643 is a deficient number, since it is larger than the sum of its proper divisors (95406413).

2004642643 is an equidigital number, since it uses as much as digits as its factorization.

2004642643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 2004642643 is about 44773.2357888058. The cubic root of 2004642643 is about 1260.8951904592.

The spelling of 2004642643 in words is "two billion, four million, six hundred forty-two thousand, six hundred forty-three".