3818576361 has 4 divisors (see below), whose sum is σ = 5091435152. Its totient is φ = 2545717572.

The previous prime is 3818576327. The next prime is 3818576389. The reversal of 3818576361 is 1636758183.

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: 1636758183 = 3 ⋅545586061.

It is not a de Polignac number, because 3818576361 - 2¹⁰ = 3818575337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3818576361.

It is not an unprimeable number, because it can be changed into a prime (3818576561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636429391 + ... + 636429396.

It is an arithmetic number, because the mean of its divisors is an integer number (1272858788).

Almost surely, 2^3818576361 is an apocalyptic number.

It is an amenable number.

3818576361 is a deficient number, since it is larger than the sum of its proper divisors (1272858791).

3818576361 is a wasteful number, since it uses less digits than its factorization.

3818576361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272858790.

The product of its digits is 725760, while the sum is 48.

The square root of 3818576361 is about 61794.6305191640. The cubic root of 3818576361 is about 1563.0294464010.

The spelling of 3818576361 in words is "three billion, eight hundred eighteen million, five hundred seventy-six thousand, three hundred sixty-one".