9987142027 has 2 divisors, whose sum is σ = 9987142028. Its totient is φ = 9987142026.

The previous prime is 9987141961. The next prime is 9987142049. The reversal of 9987142027 is 7202417899.

9987142027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9987142027 is a prime.

It is not a weakly prime, because it can be changed into another prime (9987142327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4993571013 + 4993571014.

It is an arithmetic number, because the mean of its divisors is an integer number (4993571014).

Almost surely, 2^9987142027 is an apocalyptic number.

9987142027 is a deficient number, since it is larger than the sum of its proper divisors (1).

9987142027 is an equidigital number, since it uses as much as digits as its factorization.

9987142027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 9987142027 is about 99935.6894557695. The cubic root of 9987142027 is about 2153.5109052162.

The spelling of 9987142027 in words is "nine billion, nine hundred eighty-seven million, one hundred forty-two thousand, twenty-seven".