2043663671 has 4 divisors (see below), whose sum is σ = 2335615632. Its totient is φ = 1751711712.

The previous prime is 2043663641. The next prime is 2043663691. The reversal of 2043663671 is 1763663402.

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

It is a cyclic number.

It is not a de Polignac number, because 2043663671 - 2⁶ = 2043663607 is a prime.

It is a super-2 number, since 2×2043663671² = 8353122400330392482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043663641) 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, 145975970 + ... + 145975983.

It is an arithmetic number, because the mean of its divisors is an integer number (583903908).

Almost surely, 2^2043663671 is an apocalyptic number.

2043663671 is a deficient number, since it is larger than the sum of its proper divisors (291951961).

2043663671 is an equidigital number, since it uses as much as digits as its factorization.

2043663671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291951960.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 2043663671 is about 45206.8984890581. The cubic root of 2043663671 is about 1269.0239200655.

The spelling of 2043663671 in words is "two billion, forty-three million, six hundred sixty-three thousand, six hundred seventy-one".