3845873139 has 4 divisors (see below), whose sum is σ = 5127830856. Its totient is φ = 2563915424.

The previous prime is 3845873137. The next prime is 3845873147. The reversal of 3845873139 is 9313785483.

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 3845873139 - 2¹ = 3845873137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3845873091 and 3845873100.

It is not an unprimeable number, because it can be changed into a prime (3845873137) 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, 640978854 + ... + 640978859.

It is an arithmetic number, because the mean of its divisors is an integer number (1281957714).

Almost surely, 2^3845873139 is an apocalyptic number.

3845873139 is a deficient number, since it is larger than the sum of its proper divisors (1281957717).

3845873139 is a wasteful number, since it uses less digits than its factorization.

3845873139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281957716.

The product of its digits is 2177280, while the sum is 51.

The square root of 3845873139 is about 62015.1041198836. The cubic root of 3845873139 is about 1566.7450026370.

The spelling of 3845873139 in words is "three billion, eight hundred forty-five million, eight hundred seventy-three thousand, one hundred thirty-nine".