6432742769 has 2 divisors, whose sum is σ = 6432742770. Its totient is φ = 6432742768.

The previous prime is 6432742747. The next prime is 6432742783. The reversal of 6432742769 is 9672472346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6314368369 + 118374400 = 79463^2 + 10880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6432742769 is a prime.

It is a super-2 number, since 2×6432742769² = 82760359064243574722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6432742709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3216371384 + 3216371385.

It is an arithmetic number, because the mean of its divisors is an integer number (3216371385).

Almost surely, 2^6432742769 is an apocalyptic number.

It is an amenable number.

6432742769 is a deficient number, since it is larger than the sum of its proper divisors (1).

6432742769 is an equidigital number, since it uses as much as digits as its factorization.

6432742769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 50.

The square root of 6432742769 is about 80204.3812331970. The cubic root of 6432742769 is about 1859.7963673668.

The spelling of 6432742769 in words is "six billion, four hundred thirty-two million, seven hundred forty-two thousand, seven hundred sixty-nine".