4085950865 has 8 divisors (see below), whose sum is σ = 4911412968. Its totient is φ = 3263246080.

The previous prime is 4085950823. The next prime is 4085950871. The reversal of 4085950865 is 5680595804.

4085950865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 214124689 + 3871826176 = 14633^2 + 62224^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4085950865 - 2¹⁴ = 4085934481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686066 + ... + 691995.

It is an arithmetic number, because the mean of its divisors is an integer number (613926621).

Almost surely, 2^4085950865 is an apocalyptic number.

It is an amenable number.

4085950865 is a deficient number, since it is larger than the sum of its proper divisors (825462103).

4085950865 is a wasteful number, since it uses less digits than its factorization.

4085950865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378659.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The square root of 4085950865 is about 63921.4429201970. The cubic root of 4085950865 is about 1598.6904473425.

The spelling of 4085950865 in words is "four billion, eighty-five million, nine hundred fifty thousand, eight hundred sixty-five".