104068615509 has 16 divisors (see below), whose sum is σ = 154313060800. Its totient is φ = 69317276688.

The previous prime is 104068615493. The next prime is 104068615517. The reversal of 104068615509 is 905516860401.

104068615509 is a `hidden beast` number, since 10 + 4 + 0 + 6 + 86 + 1 + 550 + 9 = 666.

It is not a de Polignac number, because 104068615509 - 2⁴ = 104068615493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104068615549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1685794 + ... + 1746435.

It is an arithmetic number, because the mean of its divisors is an integer number (9644566300).

Almost surely, 2^104068615509 is an apocalyptic number.

It is an amenable number.

104068615509 is a deficient number, since it is larger than the sum of its proper divisors (50244445291).

104068615509 is a wasteful number, since it uses less digits than its factorization.

104068615509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433361 (or 3433355 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 104068615509 in words is "one hundred four billion, sixty-eight million, six hundred fifteen thousand, five hundred nine".