3639831245 has 16 divisors (see below), whose sum is σ = 4457963520. Its totient is φ = 2852113344.

The previous prime is 3639831203. The next prime is 3639831253. The reversal of 3639831245 is 5421389363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3639831245 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3639831196 and 3639831205.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 59444 + ... + 103986.

It is an arithmetic number, because the mean of its divisors is an integer number (278622720).

Almost surely, 2^3639831245 is an apocalyptic number.

It is an amenable number.

3639831245 is a deficient number, since it is larger than the sum of its proper divisors (818132275).

3639831245 is a wasteful number, since it uses less digits than its factorization.

3639831245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44884.

The product of its digits is 466560, while the sum is 44.

The square root of 3639831245 is about 60331.0139563392. The cubic root of 3639831245 is about 1538.2505637148.

The spelling of 3639831245 in words is "three billion, six hundred thirty-nine million, eight hundred thirty-one thousand, two hundred forty-five".