3508981809 has 8 divisors (see below), whose sum is σ = 4744539072. Its totient is φ = 2306372880.

The previous prime is 3508981799. The next prime is 3508981811. The reversal of 3508981809 is 9081898053.

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

It is not a de Polignac number, because 3508981809 - 2⁴ = 3508981793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3508981909) 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, 8236834 + ... + 8237259.

It is an arithmetic number, because the mean of its divisors is an integer number (593067384).

Almost surely, 2^3508981809 is an apocalyptic number.

It is an amenable number.

3508981809 is a deficient number, since it is larger than the sum of its proper divisors (1235557263).

3508981809 is a wasteful number, since it uses less digits than its factorization.

3508981809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16474167.

The product of its (nonzero) digits is 622080, while the sum is 51.

The square root of 3508981809 is about 59236.6593335580. The cubic root of 3508981809 is about 1519.5921414067.

The spelling of 3508981809 in words is "three billion, five hundred eight million, nine hundred eighty-one thousand, eight hundred nine".