29805040489 has 16 divisors (see below), whose sum is σ = 35167712256. Its totient is φ = 24718852800.

The previous prime is 29805040471. The next prime is 29805040501. The reversal of 29805040489 is 98404050892.

It is a cyclic number.

It is not a de Polignac number, because 29805040489 - 2⁷ = 29805040361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29805040469) 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 in 15 ways as a sum of consecutive naturals, for example, 2437539 + ... + 2449735.

It is an arithmetic number, because the mean of its divisors is an integer number (2197982016).

Almost surely, 2^29805040489 is an apocalyptic number.

It is an amenable number.

29805040489 is a deficient number, since it is larger than the sum of its proper divisors (5362671767).

29805040489 is a wasteful number, since it uses less digits than its factorization.

29805040489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23496.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 29805040489 in words is "twenty-nine billion, eight hundred five million, forty thousand, four hundred eighty-nine".