4098465985 has 8 divisors (see below), whose sum is σ = 5038114536. Its totient is φ = 3198802560.

The previous prime is 4098465947. The next prime is 4098465989. The reversal of 4098465985 is 5895648904.

It can be written as a sum of positive squares in 4 ways, for example, as 436642816 + 3661823169 = 20896^2 + 60513^2 .

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

It is not a de Polignac number, because 4098465985 - 2¹⁵ = 4098433217 is a prime.

It is a super-3 number, since 3×4098465985³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4098465989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9996054 + ... + 9996463.

It is an arithmetic number, because the mean of its divisors is an integer number (629764317).

Almost surely, 2^4098465985 is an apocalyptic number.

It is an amenable number.

4098465985 is a deficient number, since it is larger than the sum of its proper divisors (939648551).

4098465985 is a wasteful number, since it uses less digits than its factorization.

4098465985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19992563.

The product of its (nonzero) digits is 12441600, while the sum is 58.

The square root of 4098465985 is about 64019.2626089992. The cubic root of 4098465985 is about 1600.3210273810.

The spelling of 4098465985 in words is "four billion, ninety-eight million, four hundred sixty-five thousand, nine hundred eighty-five".