3818374849 has 9 divisors (see below), whose sum is σ = 3885833289. Its totient is φ = 3752070960.

The previous prime is 3818374841. The next prime is 3818374853. The reversal of 3818374849 is 9484738183.

The square root of 3818374849 is 61793.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3627050625 + 191324224 = 60225^2 + 13832^2 .

It is not a de Polignac number, because 3818374849 - 2³ = 3818374841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3818374849.

It is not an unprimeable number, because it can be changed into a prime (3818374841) 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 8 ways as a sum of consecutive naturals, for example, 3768867 + ... + 3769879.

Almost surely, 2^3818374849 is an apocalyptic number.

3818374849 is the 61793-rd square number.

3818374849 is the 30897-th centered octagonal number.

It is an amenable number.

3818374849 is a deficient number, since it is larger than the sum of its proper divisors (67458440).

3818374849 is an frugal number, since it uses more digits than its factorization.

3818374849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148 (or 1074 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The cubic root of 3818374849 is about 1563.0019514482.

The spelling of 3818374849 in words is "three billion, eight hundred eighteen million, three hundred seventy-four thousand, eight hundred forty-nine".