4008985265 has 16 divisors (see below), whose sum is σ = 4868618832. Its totient is φ = 3168743424.

The previous prime is 4008985249. The next prime is 4008985333. The reversal of 4008985265 is 5625898004.

It can be written as a sum of positive squares in 8 ways, for example, as 1681984144 + 2327001121 = 41012^2 + 48239^2 .

It is a cyclic number.

It is not a de Polignac number, because 4008985265 - 2⁴ = 4008985249 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292547 + ... + 305943.

It is an arithmetic number, because the mean of its divisors is an integer number (304288677).

Almost surely, 2^4008985265 is an apocalyptic number.

It is an amenable number.

4008985265 is a deficient number, since it is larger than the sum of its proper divisors (859633567).

4008985265 is a wasteful number, since it uses less digits than its factorization.

4008985265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14116.

The product of its (nonzero) digits is 691200, while the sum is 47.

The square root of 4008985265 is about 63316.5481134277. The cubic root of 4008985265 is about 1588.5887646783.

The spelling of 4008985265 in words is "four billion, eight million, nine hundred eighty-five thousand, two hundred sixty-five".