13876646656987 has 2 divisors, whose sum is σ = 13876646656988. Its totient is φ = 13876646656986.

The previous prime is 13876646656921. The next prime is 13876646656993. The reversal of 13876646656987 is 78965664667831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13876646656987 - 2¹¹ = 13876646654939 is a prime.

It is a super-2 number, since 2×13876646656987² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13876646656987.

It is not a weakly prime, because it can be changed into another prime (13876646657987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6938323328493 + 6938323328494.

It is an arithmetic number, because the mean of its divisors is an integer number (6938323328494).

Almost surely, 2^{13876646656987} is an apocalyptic number.

13876646656987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13876646656987 is an equidigital number, since it uses as much as digits as its factorization.

13876646656987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13168189440, while the sum is 82.

The spelling of 13876646656987 in words is "thirteen trillion, eight hundred seventy-six billion, six hundred forty-six million, six hundred fifty-six thousand, nine hundred eighty-seven".