13659846138 has 48 divisors (see below), whose sum is σ = 31127556096. Its totient is φ = 4323252960.

The previous prime is 13659846121. The next prime is 13659846143. The reversal of 13659846138 is 83164895631.

13659846138 is a `hidden beast` number, since 1 + 3 + 6 + 598 + 46 + 1 + 3 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 201370 + ... + 260517.

It is an arithmetic number, because the mean of its divisors is an integer number (648490752).

Almost surely, 2^13659846138 is an apocalyptic number.

13659846138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13659846138 is an abundant number, since it is smaller than the sum of its proper divisors (17467709958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13659846138 is a wasteful number, since it uses less digits than its factorization.

13659846138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461979 (or 461976 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 13659846138 in words is "thirteen billion, six hundred fifty-nine million, eight hundred forty-six thousand, one hundred thirty-eight".