3851128673 has 4 divisors (see below), whose sum is σ = 4401289920. Its totient is φ = 3300967428.

The previous prime is 3851128669. The next prime is 3851128691. The reversal of 3851128673 is 3768211583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3768211583 = 3163 ⋅1191341.

It is a cyclic number.

It is not a de Polignac number, because 3851128673 - 2² = 3851128669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3851128273) 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, 275080613 + ... + 275080626.

It is an arithmetic number, because the mean of its divisors is an integer number (1100322480).

Almost surely, 2^3851128673 is an apocalyptic number.

It is an amenable number.

3851128673 is a deficient number, since it is larger than the sum of its proper divisors (550161247).

3851128673 is an equidigital number, since it uses as much as digits as its factorization.

3851128673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550161246.

The product of its digits is 241920, while the sum is 44.

The square root of 3851128673 is about 62057.4626696903. The cubic root of 3851128673 is about 1567.4583502911.

The spelling of 3851128673 in words is "three billion, eight hundred fifty-one million, one hundred twenty-eight thousand, six hundred seventy-three".