4138736843 has 4 divisors (see below), whose sum is σ = 4138959048. Its totient is φ = 4138514640.

The previous prime is 4138736837. The next prime is 4138736879. The reversal of 4138736843 is 3486378314.

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 4138736843 - 2¹⁶ = 4138671307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4138736243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80321 + ... + 121362.

It is an arithmetic number, because the mean of its divisors is an integer number (1034739762).

Almost surely, 2^4138736843 is an apocalyptic number.

4138736843 is a deficient number, since it is larger than the sum of its proper divisors (222205).

4138736843 is a wasteful number, since it uses less digits than its factorization.

4138736843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222204.

The product of its digits is 1161216, while the sum is 47.

The square root of 4138736843 is about 64333.0151866054. The cubic root of 4138736843 is about 1605.5454508781.

The spelling of 4138736843 in words is "four billion, one hundred thirty-eight million, seven hundred thirty-six thousand, eight hundred forty-three".