7865750865 has 16 divisors (see below), whose sum is σ = 14383087488. Its totient is φ = 3595771776.

The previous prime is 7865750861. The next prime is 7865750897. The reversal of 7865750865 is 5680575687.

7865750865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7865750865 - 2² = 7865750861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7865750861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37455852 + ... + 37456061.

It is an arithmetic number, because the mean of its divisors is an integer number (898942968).

Almost surely, 2^7865750865 is an apocalyptic number.

It is an amenable number.

7865750865 is a deficient number, since it is larger than the sum of its proper divisors (6517336623).

7865750865 is a wasteful number, since it uses less digits than its factorization.

7865750865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74911928.

The product of its (nonzero) digits is 14112000, while the sum is 57.

The square root of 7865750865 is about 88689.0684639319. The cubic root of 7865750865 is about 1988.7494027857.

The spelling of 7865750865 in words is "seven billion, eight hundred sixty-five million, seven hundred fifty thousand, eight hundred sixty-five".