3845873138 has 8 divisors (see below), whose sum is σ = 5781324780. Its totient is φ = 1918764880.

The previous prime is 3845873137. The next prime is 3845873147. The reversal of 3845873138 is 8313785483.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3725027089 + 120846049 = 61033^2 + 10993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2084693 + ... + 2086536.

Almost surely, 2^3845873138 is an apocalyptic number.

3845873138 is a deficient number, since it is larger than the sum of its proper divisors (1935451642).

3845873138 is a wasteful number, since it uses less digits than its factorization.

3845873138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171692.

The product of its digits is 1935360, while the sum is 50.

The square root of 3845873138 is about 62015.1041118210. The cubic root of 3845873138 is about 1566.7450025012.

The spelling of 3845873138 in words is "three billion, eight hundred forty-five million, eight hundred seventy-three thousand, one hundred thirty-eight".