13887527515129 has 2 divisors, whose sum is σ = 13887527515130. Its totient is φ = 13887527515128.

The previous prime is 13887527515091. The next prime is 13887527515157. The reversal of 13887527515129 is 92151572578831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7195682855529 + 6691844659600 = 2682477^2 + 2586860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13887527515129 is a prime.

It is not a weakly prime, because it can be changed into another prime (13887527515529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6943763757564 + 6943763757565.

It is an arithmetic number, because the mean of its divisors is an integer number (6943763757565).

Almost surely, 2^{13887527515129} is an apocalyptic number.

It is an amenable number.

13887527515129 is a deficient number, since it is larger than the sum of its proper divisors (1).

13887527515129 is an equidigital number, since it uses as much as digits as its factorization.

13887527515129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336000, while the sum is 64.

The spelling of 13887527515129 in words is "thirteen trillion, eight hundred eighty-seven billion, five hundred twenty-seven million, five hundred fifteen thousand, one hundred twenty-nine".