3681228265 has 32 divisors (see below), whose sum is σ = 5199336576. Its totient is φ = 2466754560.

The previous prime is 3681228247. The next prime is 3681228281. The reversal of 3681228265 is 5628221863.

It is a de Polignac number, because none of the positive numbers 2^k-3681228265 is a prime.

It is a Duffinian 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 31 ways as a sum of consecutive naturals, for example, 408094 + ... + 417016.

It is an arithmetic number, because the mean of its divisors is an integer number (162479268).

Almost surely, 2^3681228265 is an apocalyptic number.

It is an amenable number.

3681228265 is a deficient number, since it is larger than the sum of its proper divisors (1518108311).

3681228265 is a wasteful number, since it uses less digits than its factorization.

3681228265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9529.

The product of its digits is 276480, while the sum is 43.

The square root of 3681228265 is about 60673.1263822790. The cubic root of 3681228265 is about 1544.0602734542.

The spelling of 3681228265 in words is "three billion, six hundred eighty-one million, two hundred twenty-eight thousand, two hundred sixty-five".