4085722815 has 8 divisors (see below), whose sum is σ = 6537156528. Its totient is φ = 2179052160.

The previous prime is 4085722813. The next prime is 4085722819. The reversal of 4085722815 is 5182275804.

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

It is not a de Polignac number, because 4085722815 - 2¹ = 4085722813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4085722811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136190746 + ... + 136190775.

It is an arithmetic number, because the mean of its divisors is an integer number (817144566).

Almost surely, 2^4085722815 is an apocalyptic number.

4085722815 is a deficient number, since it is larger than the sum of its proper divisors (2451433713).

4085722815 is a wasteful number, since it uses less digits than its factorization.

4085722815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272381529.

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 4085722815 is about 63919.6590651108. The cubic root of 4085722815 is about 1598.6607041117.

The spelling of 4085722815 in words is "four billion, eighty-five million, seven hundred twenty-two thousand, eight hundred fifteen".