13127873987 has 2 divisors, whose sum is σ = 13127873988. Its totient is φ = 13127873986.

The previous prime is 13127873981. The next prime is 13127874029. The reversal of 13127873987 is 78937872131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13127873987 - 2⁴ = 13127873971 is a prime.

It is not a weakly prime, because it can be changed into another prime (13127873981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6563936993 + 6563936994.

It is an arithmetic number, because the mean of its divisors is an integer number (6563936994).

Almost surely, 2^13127873987 is an apocalyptic number.

13127873987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13127873987 is an equidigital number, since it uses as much as digits as its factorization.

13127873987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 56.

The spelling of 13127873987 in words is "thirteen billion, one hundred twenty-seven million, eight hundred seventy-three thousand, nine hundred eighty-seven".