29534389209 has 40 divisors (see below), whose sum is σ = 47545023680. Its totient is φ = 18162784224.

The previous prime is 29534389189. The next prime is 29534389219. The reversal of 29534389209 is 90298343592.

29534389209 is a `hidden beast` number, since 2 + 9 + 53 + 4 + 389 + 209 = 666.

It is not a de Polignac number, because 29534389209 - 2⁸ = 29534388953 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29534389219) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1704612 + ... + 1721850.

It is an arithmetic number, because the mean of its divisors is an integer number (1188625592).

Almost surely, 2^29534389209 is an apocalyptic number.

It is an amenable number.

29534389209 is a deficient number, since it is larger than the sum of its proper divisors (18010634471).

29534389209 is a wasteful number, since it uses less digits than its factorization.

29534389209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18891 (or 18882 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 29534389209 in words is "twenty-nine billion, five hundred thirty-four million, three hundred eighty-nine thousand, two hundred nine".