29997928349329 has 2 divisors, whose sum is σ = 29997928349330. Its totient is φ = 29997928349328.

The previous prime is 29997928349317. The next prime is 29997928349381. The reversal of 29997928349329 is 92394382979992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25449774979729 + 4548153369600 = 5044777^2 + 2132640^2 .

It is a cyclic number.

It is not a de Polignac number, because 29997928349329 - 2⁷ = 29997928349201 is a prime.

It is not a weakly prime, because it can be changed into another prime (29997928346329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14998964174664 + 14998964174665.

It is an arithmetic number, because the mean of its divisors is an integer number (14998964174665).

Almost surely, 2^{29997928349329} is an apocalyptic number.

It is an amenable number.

29997928349329 is a deficient number, since it is larger than the sum of its proper divisors (1).

29997928349329 is an equidigital number, since it uses as much as digits as its factorization.

29997928349329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8571080448, while the sum is 85.

The spelling of 29997928349329 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred twenty-eight million, three hundred forty-nine thousand, three hundred twenty-nine".