5645123265 has 16 divisors (see below), whose sum is σ = 9055425600. Its totient is φ = 3002989632.

The previous prime is 5645123249. The next prime is 5645123273. The reversal of 5645123265 is 5623215465.

It is not a de Polignac number, because 5645123265 - 2⁴ = 5645123249 is a prime.

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, 477895 + ... + 489564.

It is an arithmetic number, because the mean of its divisors is an integer number (565964100).

Almost surely, 2^5645123265 is an apocalyptic number.

It is an amenable number.

5645123265 is a deficient number, since it is larger than the sum of its proper divisors (3410302335).

5645123265 is a wasteful number, since it uses less digits than its factorization.

5645123265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967856.

The product of its digits is 216000, while the sum is 39.

The square root of 5645123265 is about 75134.0353302017. The cubic root of 5645123265 is about 1780.5649077047.

The spelling of 5645123265 in words is "five billion, six hundred forty-five million, one hundred twenty-three thousand, two hundred sixty-five".