6434642759 has 2 divisors, whose sum is σ = 6434642760. Its totient is φ = 6434642758.

The previous prime is 6434642729. The next prime is 6434642789. The reversal of 6434642759 is 9572464346.

It is a balanced prime because it is at equal distance from previous prime (6434642729) and next prime (6434642789).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6434642759 is a prime.

It is a super-2 number, since 2×6434642759² = 82809254871902264162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6434642729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217321379 + 3217321380.

It is an arithmetic number, because the mean of its divisors is an integer number (3217321380).

Almost surely, 2^6434642759 is an apocalyptic number.

6434642759 is a deficient number, since it is larger than the sum of its proper divisors (1).

6434642759 is an equidigital number, since it uses as much as digits as its factorization.

6434642759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 50.

The square root of 6434642759 is about 80216.2250358367. The cubic root of 6434642759 is about 1859.9794539489.

The spelling of 6434642759 in words is "six billion, four hundred thirty-four million, six hundred forty-two thousand, seven hundred fifty-nine".