6340729867 has 2 divisors, whose sum is σ = 6340729868. Its totient is φ = 6340729866.

The previous prime is 6340729859. The next prime is 6340729873. The reversal of 6340729867 is 7689270436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6340729867 - 2³ = 6340729859 is a prime.

It is not a weakly prime, because it can be changed into another prime (6340729897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170364933 + 3170364934.

It is an arithmetic number, because the mean of its divisors is an integer number (3170364934).

Almost surely, 2^6340729867 is an apocalyptic number.

6340729867 is a deficient number, since it is larger than the sum of its proper divisors (1).

6340729867 is an equidigital number, since it uses as much as digits as its factorization.

6340729867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The square root of 6340729867 is about 79628.7000207840. The cubic root of 6340729867 is about 1850.8863410004.

The spelling of 6340729867 in words is "six billion, three hundred forty million, seven hundred twenty-nine thousand, eight hundred sixty-seven".