429646860829 has 2 divisors, whose sum is σ = 429646860830. Its totient is φ = 429646860828.

The previous prime is 429646860809. The next prime is 429646860833. The reversal of 429646860829 is 928068646924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308828052729 + 120818808100 = 555723^2 + 347590^2 .

It is a cyclic number.

It is not a de Polignac number, because 429646860829 - 2¹⁹ = 429646336541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429646860809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214823430414 + 214823430415.

It is an arithmetic number, because the mean of its divisors is an integer number (214823430415).

Almost surely, 2^429646860829 is an apocalyptic number.

It is an amenable number.

429646860829 is a deficient number, since it is larger than the sum of its proper divisors (1).

429646860829 is an equidigital number, since it uses as much as digits as its factorization.

429646860829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71663616, while the sum is 64.

The spelling of 429646860829 in words is "four hundred twenty-nine billion, six hundred forty-six million, eight hundred sixty thousand, eight hundred twenty-nine".