8500101865 has 4 divisors (see below), whose sum is σ = 10200122244. Its totient is φ = 6800081488.

The previous prime is 8500101851. The next prime is 8500101889. The reversal of 8500101865 is 5681010058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3898378969 + 4601722896 = 62437^2 + 67836^2 .

It is a cyclic number.

It is not a de Polignac number, because 8500101865 - 2⁵ = 8500101833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8500101865.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850010182 + ... + 850010191.

It is an arithmetic number, because the mean of its divisors is an integer number (2550030561).

Almost surely, 2^8500101865 is an apocalyptic number.

It is an amenable number.

8500101865 is a deficient number, since it is larger than the sum of its proper divisors (1700020379).

8500101865 is a wasteful number, since it uses less digits than its factorization.

8500101865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700020378.

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 8500101865 is about 92195.9970118009. The cubic root of 8500101865 is about 2040.8357034319.

The spelling of 8500101865 in words is "eight billion, five hundred million, one hundred one thousand, eight hundred sixty-five".