20829208112289 has 32 divisors (see below), whose sum is σ = 33368443568640. Its totient is φ = 12791236674816.

The previous prime is 20829208112281. The next prime is 20829208112329. The reversal of 20829208112289 is 98221180292802.

It is a happy number.

20829208112289 is a `hidden beast` number, since 20 + 8 + 29 + 208 + 112 + 289 = 666.

It is not a de Polignac number, because 20829208112289 - 2³ = 20829208112281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20829208112281) 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 in 31 ways as a sum of consecutive naturals, for example, 482739474 + ... + 482782619.

It is an arithmetic number, because the mean of its divisors is an integer number (1042763861520).

Almost surely, 2^{20829208112289} is an apocalyptic number.

It is an amenable number.

20829208112289 is a deficient number, since it is larger than the sum of its proper divisors (12539235456351).

20829208112289 is a wasteful number, since it uses less digits than its factorization.

20829208112289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965522166 (or 965522160 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The spelling of 20829208112289 in words is "twenty trillion, eight hundred twenty-nine billion, two hundred eight million, one hundred twelve thousand, two hundred eighty-nine".