13683626685 has 24 divisors (see below), whose sum is σ = 23722597080. Its totient is φ = 7296607872.

The previous prime is 13683626683. The next prime is 13683626687. The reversal of 13683626685 is 58662638631.

It is a happy number.

13683626685 is a `hidden beast` number, since 1 + 3 + 6 + 8 + 3 + 626 + 6 + 8 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (13683626683) and next prime (13683626687).

It can be written as a sum of positive squares in 4 ways, for example, as 94828644 + 13588798041 = 9738^2 + 116571^2 .

It is not a de Polignac number, because 13683626685 - 2¹ = 13683626683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13683626681) 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, 254331 + ... + 303399.

It is an arithmetic number, because the mean of its divisors is an integer number (988441545).

Almost surely, 2^13683626685 is an apocalyptic number.

13683626685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13683626685 is a deficient number, since it is larger than the sum of its proper divisors (10038970395).

13683626685 is a wasteful number, since it uses less digits than its factorization.

13683626685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55277 (or 55274 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 13683626685 in words is "thirteen billion, six hundred eighty-three million, six hundred twenty-six thousand, six hundred eighty-five".