29701320421889 has 2 divisors, whose sum is σ = 29701320421890. Its totient is φ = 29701320421888.

The previous prime is 29701320421859. The next prime is 29701320421907. The reversal of 29701320421889 is 98812402310792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25393869228289 + 4307451193600 = 5039233^2 + 2075440^2 .

It is a cyclic number.

It is not a de Polignac number, because 29701320421889 - 2¹⁶ = 29701320356353 is a prime.

It is not a weakly prime, because it can be changed into another prime (29701320421819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14850660210944 + 14850660210945.

It is an arithmetic number, because the mean of its divisors is an integer number (14850660210945).

Almost surely, 2^{29701320421889} is an apocalyptic number.

It is an amenable number.

29701320421889 is a deficient number, since it is larger than the sum of its proper divisors (1).

29701320421889 is an equidigital number, since it uses as much as digits as its factorization.

29701320421889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 29701320421889 in words is "twenty-nine trillion, seven hundred one billion, three hundred twenty million, four hundred twenty-one thousand, eight hundred eighty-nine".