29318267889 has 12 divisors (see below), whose sum is σ = 44577483600. Its totient is φ = 18516800664.

The previous prime is 29318267833. The next prime is 29318267899. The reversal of 29318267889 is 98876281392.

29318267889 is a `hidden beast` number, since 293 + 1 + 8 + 267 + 8 + 89 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-29318267889 is a prime.

It is a super-2 number, since 2×29318267889² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29318267809) 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 11 ways as a sum of consecutive naturals, for example, 85725759 + ... + 85726100.

It is an arithmetic number, because the mean of its divisors is an integer number (3714790300).

Almost surely, 2^29318267889 is an apocalyptic number.

It is an amenable number.

29318267889 is a deficient number, since it is larger than the sum of its proper divisors (15259215711).

29318267889 is a wasteful number, since it uses less digits than its factorization.

29318267889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171451884 (or 171451881 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 29318267889 in words is "twenty-nine billion, three hundred eighteen million, two hundred sixty-seven thousand, eight hundred eighty-nine".