3845144987 has 4 divisors (see below), whose sum is σ = 3897818280. Its totient is φ = 3792471696.

The previous prime is 3845144971. The next prime is 3845144993. The reversal of 3845144987 is 7894415483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7894415483 = 167 ⋅47271949.

It is a cyclic number.

It is not a de Polignac number, because 3845144987 - 2⁴ = 3845144971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3845144587) 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, 26336537 + ... + 26336682.

It is an arithmetic number, because the mean of its divisors is an integer number (974454570).

Almost surely, 2^3845144987 is an apocalyptic number.

3845144987 is a deficient number, since it is larger than the sum of its proper divisors (52673293).

3845144987 is an equidigital number, since it uses as much as digits as its factorization.

3845144987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52673292.

The product of its digits is 3870720, while the sum is 53.

The square root of 3845144987 is about 62009.2330786311. The cubic root of 3845144987 is about 1566.6461173755.

It can be divided in two parts, 38451 and 44987, that added together give a palindrome (83438).

The spelling of 3845144987 in words is "three billion, eight hundred forty-five million, one hundred forty-four thousand, nine hundred eighty-seven".