3783635754649 has 27 divisors (see below), whose sum is σ = 4154257316223. Its totient is φ = 3445262078400.

The previous prime is 3783635754643. The next prime is 3783635754719. The reversal of 3783635754649 is 9464575363873.

The square root of 3783635754649 is 1945157.

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

It can be written as a sum of positive squares in only one way, i.e., 2945737179225 + 837898575424 = 1716315^2 + 915368^2 .

It is not a de Polignac number, because 3783635754649 - 2³ = 3783635754641 is a prime.

It is a super-2 number, since 2×3783635754649² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3783635754641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1025095894 + ... + 1025099584.

Almost surely, 2^{3783635754649} is an apocalyptic number.

3783635754649 is the 1945157-th square number.

3783635754649 is the 972579-th centered octagonal number.

It is an amenable number.

3783635754649 is a deficient number, since it is larger than the sum of its proper divisors (370621561574).

3783635754649 is an frugal number, since it uses more digits than its factorization.

3783635754649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7478 (or 3739 counting only the distinct ones).

The product of its digits is 1371686400, while the sum is 70.

The spelling of 3783635754649 in words is "three trillion, seven hundred eighty-three billion, six hundred thirty-five million, seven hundred fifty-four thousand, six hundred forty-nine".