2600621265 has 16 divisors (see below), whose sum is σ = 4539266496. Its totient is φ = 1260907200.

The previous prime is 2600621227. The next prime is 2600621273. The reversal of 2600621265 is 5621260062.

It is not a de Polignac number, because 2600621265 - 2⁷ = 2600621137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7880506 + ... + 7880835.

It is an arithmetic number, because the mean of its divisors is an integer number (283704156).

Almost surely, 2^2600621265 is an apocalyptic number.

It is an amenable number.

2600621265 is a deficient number, since it is larger than the sum of its proper divisors (1938645231).

2600621265 is a wasteful number, since it uses less digits than its factorization.

2600621265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15761360.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2600621265 is about 50996.2867765880. The cubic root of 2600621265 is about 1375.1783817056.

The spelling of 2600621265 in words is "two billion, six hundred million, six hundred twenty-one thousand, two hundred sixty-five".