6986143721159 has 2 divisors, whose sum is σ = 6986143721160. Its totient is φ = 6986143721158.

The previous prime is 6986143721131. The next prime is 6986143721239. The reversal of 6986143721159 is 9511273416896.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6986143721159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6986143721129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493071860579 + 3493071860580.

It is an arithmetic number, because the mean of its divisors is an integer number (3493071860580).

Almost surely, 2^{6986143721159} is an apocalyptic number.

6986143721159 is a deficient number, since it is larger than the sum of its proper divisors (1).

6986143721159 is an equidigital number, since it uses as much as digits as its factorization.

6986143721159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 62.

The spelling of 6986143721159 in words is "six trillion, nine hundred eighty-six billion, one hundred forty-three million, seven hundred twenty-one thousand, one hundred fifty-nine".