9864143693 has 2 divisors, whose sum is σ = 9864143694. Its totient is φ = 9864143692.

The previous prime is 9864143687. The next prime is 9864143701. The reversal of 9864143693 is 3963414689.

9864143693 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8673755689 + 1190388004 = 93133^2 + 34502^2 .

It is a cyclic number.

It is not a de Polignac number, because 9864143693 - 2⁸ = 9864143437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9864143603) 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, 4932071846 + 4932071847.

It is an arithmetic number, because the mean of its divisors is an integer number (4932071847).

Almost surely, 2^9864143693 is an apocalyptic number.

It is an amenable number.

9864143693 is a deficient number, since it is larger than the sum of its proper divisors (1).

9864143693 is an equidigital number, since it uses as much as digits as its factorization.

9864143693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3359232, while the sum is 53.

The square root of 9864143693 is about 99318.3955418129. The cubic root of 9864143693 is about 2144.6337196401.

The spelling of 9864143693 in words is "nine billion, eight hundred sixty-four million, one hundred forty-three thousand, six hundred ninety-three".