29712969056321 has 16 divisors (see below), whose sum is σ = 30212008041600. Its totient is φ = 29218904994048.

The previous prime is 29712969056291. The next prime is 29712969056347. The reversal of 29712969056321 is 12365096921792.

It is a cyclic number.

It is not a de Polignac number, because 29712969056321 - 2⁶ = 29712969056257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29712969056821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6132710 + ... + 9850688.

It is an arithmetic number, because the mean of its divisors is an integer number (1888250502600).

Almost surely, 2^{29712969056321} is an apocalyptic number.

It is an amenable number.

29712969056321 is a deficient number, since it is larger than the sum of its proper divisors (499038985279).

29712969056321 is a wasteful number, since it uses less digits than its factorization.

29712969056321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718648.

The product of its (nonzero) digits is 22044960, while the sum is 62.

The spelling of 29712969056321 in words is "twenty-nine trillion, seven hundred twelve billion, nine hundred sixty-nine million, fifty-six thousand, three hundred twenty-one".