7275020865 has 128 divisors (see below), whose sum is σ = 14686617600. Its totient is φ = 2998321920.

The previous prime is 7275020839. The next prime is 7275020869. The reversal of 7275020865 is 5680205727.

It is not a de Polignac number, because 7275020865 - 2¹⁰ = 7275019841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7275020869) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15187696 + ... + 15188174.

It is an arithmetic number, because the mean of its divisors is an integer number (114739200).

Almost surely, 2^7275020865 is an apocalyptic number.

It is an amenable number.

7275020865 is an abundant number, since it is smaller than the sum of its proper divisors (7411596735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7275020865 is a wasteful number, since it uses less digits than its factorization.

7275020865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 7275020865 is about 85293.7328588684. The cubic root of 7275020865 is about 1937.6622623175.

The spelling of 7275020865 in words is "seven billion, two hundred seventy-five million, twenty thousand, eight hundred sixty-five".