29145220609 has 2 divisors, whose sum is σ = 29145220610. Its totient is φ = 29145220608.

The previous prime is 29145220591. The next prime is 29145220627. The reversal of 29145220609 is 90602254192.

It is a balanced prime because it is at equal distance from previous prime (29145220591) and next prime (29145220627).

It can be written as a sum of positive squares in only one way, i.e., 18489200625 + 10656019984 = 135975^2 + 103228^2 .

It is a cyclic number.

It is not a de Polignac number, because 29145220609 - 2¹⁷ = 29145089537 is a prime.

It is not a weakly prime, because it can be changed into another prime (29145227609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14572610304 + 14572610305.

It is an arithmetic number, because the mean of its divisors is an integer number (14572610305).

Almost surely, 2^29145220609 is an apocalyptic number.

It is an amenable number.

29145220609 is a deficient number, since it is larger than the sum of its proper divisors (1).

29145220609 is an equidigital number, since it uses as much as digits as its factorization.

29145220609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 29145220609 in words is "twenty-nine billion, one hundred forty-five million, two hundred twenty thousand, six hundred nine".