6864938429 has 2 divisors, whose sum is σ = 6864938430. Its totient is φ = 6864938428.

The previous prime is 6864938341. The next prime is 6864938461. The reversal of 6864938429 is 9248394686.

6864938429 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6794210329 + 70728100 = 82427^2 + 8410^2 .

It is a cyclic number.

It is not a de Polignac number, because 6864938429 - 2⁸ = 6864938173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6864938489) 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, 3432469214 + 3432469215.

It is an arithmetic number, because the mean of its divisors is an integer number (3432469215).

Almost surely, 2^6864938429 is an apocalyptic number.

It is an amenable number.

6864938429 is a deficient number, since it is larger than the sum of its proper divisors (1).

6864938429 is an equidigital number, since it uses as much as digits as its factorization.

6864938429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17915904, while the sum is 59.

The square root of 6864938429 is about 82854.9239876545. The cubic root of 6864938429 is about 1900.5481732244.

The spelling of 6864938429 in words is "six billion, eight hundred sixty-four million, nine hundred thirty-eight thousand, four hundred twenty-nine".