29147885420429 has 2 divisors, whose sum is σ = 29147885420430. Its totient is φ = 29147885420428.

The previous prime is 29147885420411. The next prime is 29147885420447. The reversal of 29147885420429 is 92402458874192.

It is a balanced prime because it is at equal distance from previous prime (29147885420411) and next prime (29147885420447).

It can be written as a sum of positive squares in only one way, i.e., 27209024115529 + 1938861304900 = 5216227^2 + 1392430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29147885420429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29147885410429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14573942710214 + 14573942710215.

It is an arithmetic number, because the mean of its divisors is an integer number (14573942710215).

Almost surely, 2^{29147885420429} is an apocalyptic number.

It is an amenable number.

29147885420429 is a deficient number, since it is larger than the sum of its proper divisors (1).

29147885420429 is an equidigital number, since it uses as much as digits as its factorization.

29147885420429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92897280, while the sum is 65.

The spelling of 29147885420429 in words is "twenty-nine trillion, one hundred forty-seven billion, eight hundred eighty-five million, four hundred twenty thousand, four hundred twenty-nine".