29643832409 has 2 divisors, whose sum is σ = 29643832410. Its totient is φ = 29643832408.

The previous prime is 29643832363. The next prime is 29643832411. The reversal of 29643832409 is 90423834692.

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., 29154538009 + 489294400 = 170747^2 + 22120^2 .

It is a cyclic number.

It is not a de Polignac number, because 29643832409 - 2²⁴ = 29627055193 is a prime.

Together with 29643832411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29643832459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14821916204 + 14821916205.

It is an arithmetic number, because the mean of its divisors is an integer number (14821916205).

Almost surely, 2^29643832409 is an apocalyptic number.

It is an amenable number.

29643832409 is a deficient number, since it is larger than the sum of its proper divisors (1).

29643832409 is an equidigital number, since it uses as much as digits as its factorization.

29643832409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 29643832409 in words is "twenty-nine billion, six hundred forty-three million, eight hundred thirty-two thousand, four hundred nine".