3243786745 has 8 divisors (see below), whose sum is σ = 4121517384. Its totient is φ = 2442380544.

The previous prime is 3243786737. The next prime is 3243786751. The reversal of 3243786745 is 5476873423.

It can be written as a sum of positive squares in 4 ways, for example, as 1432092649 + 1811694096 = 37843^2 + 42564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3243786745 - 2³ = 3243786737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19081014 + ... + 19081183.

It is an arithmetic number, because the mean of its divisors is an integer number (515189673).

Almost surely, 2^3243786745 is an apocalyptic number.

It is an amenable number.

3243786745 is a deficient number, since it is larger than the sum of its proper divisors (877730639).

3243786745 is a wasteful number, since it uses less digits than its factorization.

3243786745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38162219.

The product of its digits is 3386880, while the sum is 49.

The square root of 3243786745 is about 56954.2513338557. The cubic root of 3243786745 is about 1480.3034964699.

The spelling of 3243786745 in words is "three billion, two hundred forty-three million, seven hundred eighty-six thousand, seven hundred forty-five".