16987142239 has 2 divisors, whose sum is σ = 16987142240. Its totient is φ = 16987142238.

The previous prime is 16987142209. The next prime is 16987142257. The reversal of 16987142239 is 93224178961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16987142239 - 2³¹ = 14839658591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16987142209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8493571119 + 8493571120.

It is an arithmetic number, because the mean of its divisors is an integer number (8493571120).

Almost surely, 2^16987142239 is an apocalyptic number.

16987142239 is a deficient number, since it is larger than the sum of its proper divisors (1).

16987142239 is an equidigital number, since it uses as much as digits as its factorization.

16987142239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 52.

The spelling of 16987142239 in words is "sixteen billion, nine hundred eighty-seven million, one hundred forty-two thousand, two hundred thirty-nine".