2043669959 has 4 divisors (see below), whose sum is σ = 2043942504. Its totient is φ = 2043397416.

The previous prime is 2043669949. The next prime is 2043670003. The reversal of 2043669959 is 9599663402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043669959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2043669959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043669949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124697 + ... + 140130.

It is an arithmetic number, because the mean of its divisors is an integer number (510985626).

Almost surely, 2^2043669959 is an apocalyptic number.

2043669959 is a deficient number, since it is larger than the sum of its proper divisors (272545).

2043669959 is an equidigital number, since it uses as much as digits as its factorization.

2043669959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272544.

The product of its (nonzero) digits is 3149280, while the sum is 53.

The square root of 2043669959 is about 45206.9680359123. The cubic root of 2043669959 is about 1269.0252215866.

The spelling of 2043669959 in words is "two billion, forty-three million, six hundred sixty-nine thousand, nine hundred fifty-nine".