13805989659 has 36 divisors (see below), whose sum is σ = 25306720920. Its totient is φ = 7171940160.

The previous prime is 13805989657. The next prime is 13805989711. The reversal of 13805989659 is 95698950831.

13805989659 is a `hidden beast` number, since 1 + 38 + 0 + 598 + 9 + 6 + 5 + 9 = 666.

It is not a de Polignac number, because 13805989659 - 2¹ = 13805989657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 13805989596 and 13805989605.

It is not an unprimeable number, because it can be changed into a prime (13805989657) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1418154 + ... + 1427855.

It is an arithmetic number, because the mean of its divisors is an integer number (702964470).

Almost surely, 2^13805989659 is an apocalyptic number.

13805989659 is a deficient number, since it is larger than the sum of its proper divisors (11500731261).

13805989659 is a wasteful number, since it uses less digits than its factorization.

13805989659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846040 (or 2846030 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 13805989659 in words is "thirteen billion, eight hundred five million, nine hundred eighty-nine thousand, six hundred fifty-nine".