6427342517 has 2 divisors, whose sum is σ = 6427342518. Its totient is φ = 6427342516.

The previous prime is 6427342403. The next prime is 6427342567. The reversal of 6427342517 is 7152437246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6060466801 + 366875716 = 77849^2 + 19154^2 .

It is a cyclic number.

It is not a de Polignac number, because 6427342517 - 2²² = 6423148213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6427342567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213671258 + 3213671259.

It is an arithmetic number, because the mean of its divisors is an integer number (3213671259).

Almost surely, 2^6427342517 is an apocalyptic number.

It is an amenable number.

6427342517 is a deficient number, since it is larger than the sum of its proper divisors (1).

6427342517 is an equidigital number, since it uses as much as digits as its factorization.

6427342517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 41.

The square root of 6427342517 is about 80170.7085973425. The cubic root of 6427342517 is about 1859.2757920759.

The spelling of 6427342517 in words is "six billion, four hundred twenty-seven million, three hundred forty-two thousand, five hundred seventeen".