3831848749 has 4 divisors (see below), whose sum is σ = 3904147836. Its totient is φ = 3759549664.

The previous prime is 3831848743. The next prime is 3831848777. The reversal of 3831848749 is 9478481383.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1558275625 + 2273573124 = 39475^2 + 47682^2 .

It is a cyclic number.

It is not a de Polignac number, because 3831848749 - 2¹¹ = 3831846701 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 3831848749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3831848743) 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, 36149464 + ... + 36149569.

It is an arithmetic number, because the mean of its divisors is an integer number (976036959).

Almost surely, 2^3831848749 is an apocalyptic number.

It is an amenable number.

3831848749 is a deficient number, since it is larger than the sum of its proper divisors (72299087).

3831848749 is an equidigital number, since it uses as much as digits as its factorization.

3831848749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72299086.

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

The square root of 3831848749 is about 61901.9284756137. The cubic root of 3831848749 is about 1564.8382483120.

The spelling of 3831848749 in words is "three billion, eight hundred thirty-one million, eight hundred forty-eight thousand, seven hundred forty-nine".