4381708673 has 4 divisors (see below), whose sum is σ = 4639456260. Its totient is φ = 4123961088.

The previous prime is 4381708649. The next prime is 4381708703. The reversal of 4381708673 is 3768071834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3768071834 = 2 ⋅1884035917.

It can be written as a sum of positive squares in 2 ways, for example, as 2380756849 + 2000951824 = 48793^2 + 44732^2 .

It is a cyclic number.

It is not a de Polignac number, because 4381708673 - 2¹⁸ = 4381446529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4381708603) 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, 128873768 + ... + 128873801.

It is an arithmetic number, because the mean of its divisors is an integer number (1159864065).

Almost surely, 2^4381708673 is an apocalyptic number.

It is an amenable number.

4381708673 is a deficient number, since it is larger than the sum of its proper divisors (257747587).

4381708673 is a wasteful number, since it uses less digits than its factorization.

4381708673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257747586.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 4381708673 is about 66194.4761517153. The cubic root of 4381708673 is about 1636.3687096516.

The spelling of 4381708673 in words is "four billion, three hundred eighty-one million, seven hundred eight thousand, six hundred seventy-three".