2000643967 has 12 divisors (see below), whose sum is σ = 2368019056. Its totient is φ = 1655700480.

The previous prime is 2000643961. The next prime is 2000643989. The reversal of 2000643967 is 7693460002.

It is not a de Polignac number, because 2000643967 - 2³ = 2000643959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000643961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164034 + ... + 175807.

Almost surely, 2^2000643967 is an apocalyptic number.

2000643967 is a deficient number, since it is larger than the sum of its proper divisors (367375089).

2000643967 is an equidigital number, since it uses as much as digits as its factorization.

2000643967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339906 (or 339877 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 2000643967 is about 44728.5587404736. The cubic root of 2000643967 is about 1260.0562599806.

The spelling of 2000643967 in words is "two billion, six hundred forty-three thousand, nine hundred sixty-seven".