6429559117 has 2 divisors, whose sum is σ = 6429559118. Its totient is φ = 6429559116.

The previous prime is 6429559109. The next prime is 6429559121. The reversal of 6429559117 is 7119559246.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4992694281 + 1436864836 = 70659^2 + 37906^2 .

It is a cyclic number.

It is not a de Polignac number, because 6429559117 - 2³ = 6429559109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6429559177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214779558 + 3214779559.

It is an arithmetic number, because the mean of its divisors is an integer number (3214779559).

Almost surely, 2^6429559117 is an apocalyptic number.

It is an amenable number.

6429559117 is a deficient number, since it is larger than the sum of its proper divisors (1).

6429559117 is an equidigital number, since it uses as much as digits as its factorization.

6429559117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 49.

The square root of 6429559117 is about 80184.5316566730. The cubic root of 6429559117 is about 1859.4895038877.

The spelling of 6429559117 in words is "six billion, four hundred twenty-nine million, five hundred fifty-nine thousand, one hundred seventeen".