3611959859 has 24 divisors (see below), whose sum is σ = 4015265280. Its totient is φ = 3242346624.

The previous prime is 3611959849. The next prime is 3611959957. The reversal of 3611959859 is 9589591163.

It is a happy number.

It is not a de Polignac number, because 3611959859 - 2⁴ = 3611959843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3611959829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3475862 + ... + 3476900.

It is an arithmetic number, because the mean of its divisors is an integer number (167302720).

Almost surely, 2^3611959859 is an apocalyptic number.

3611959859 is a deficient number, since it is larger than the sum of its proper divisors (403305421).

3611959859 is a wasteful number, since it uses less digits than its factorization.

3611959859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619 (or 1602 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 56.

The square root of 3611959859 is about 60099.5828521297. The cubic root of 3611959859 is about 1534.3142022381.

The spelling of 3611959859 in words is "three billion, six hundred eleven million, nine hundred fifty-nine thousand, eight hundred fifty-nine".