6434012257 has 2 divisors, whose sum is σ = 6434012258. Its totient is φ = 6434012256.

The previous prime is 6434012197. The next prime is 6434012269. The reversal of 6434012257 is 7522104346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5807811681 + 626200576 = 76209^2 + 25024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6434012257 is a prime.

It is not a weakly prime, because it can be changed into another prime (6434012357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217006128 + 3217006129.

It is an arithmetic number, because the mean of its divisors is an integer number (3217006129).

Almost surely, 2^6434012257 is an apocalyptic number.

It is an amenable number.

6434012257 is a deficient number, since it is larger than the sum of its proper divisors (1).

6434012257 is an equidigital number, since it uses as much as digits as its factorization.

6434012257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 6434012257 is about 80212.2949241574. The cubic root of 6434012257 is about 1859.9187015956.

The spelling of 6434012257 in words is "six billion, four hundred thirty-four million, twelve thousand, two hundred fifty-seven".