29384989805 has 16 divisors (see below), whose sum is σ = 35334327600. Its totient is φ = 23459819520.

The previous prime is 29384989721. The next prime is 29384989817. The reversal of 29384989805 is 50898948392.

It can be written as a sum of positive squares in 8 ways, for example, as 282676969 + 29102312836 = 16813^2 + 170594^2 .

It is not a de Polignac number, because 29384989805 - 2¹⁴ = 29384973421 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6849101 + ... + 6853389.

It is an arithmetic number, because the mean of its divisors is an integer number (2208395475).

Almost surely, 2^29384989805 is an apocalyptic number.

It is an amenable number.

29384989805 is a deficient number, since it is larger than the sum of its proper divisors (5949337795).

29384989805 is a wasteful number, since it uses less digits than its factorization.

29384989805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784.

The product of its (nonzero) digits is 44789760, while the sum is 65.

The spelling of 29384989805 in words is "twenty-nine billion, three hundred eighty-four million, nine hundred eighty-nine thousand, eight hundred five".