29849853218887 has 12 divisors (see below), whose sum is σ = 33604415249944. Its totient is φ = 26355723237360.

The previous prime is 29849853218881. The next prime is 29849853218929. The reversal of 29849853218887 is 78881235894892.

It is not a de Polignac number, because 29849853218887 - 2³ = 29849853218879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29849853218887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29849853218881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2170260189 + ... + 2170273942.

Almost surely, 2^{29849853218887} is an apocalyptic number.

29849853218887 is a deficient number, since it is larger than the sum of its proper divisors (3754562031057).

29849853218887 is a wasteful number, since it uses less digits than its factorization.

29849853218887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340534190 (or 4340534167 counting only the distinct ones).

The product of its digits is 4459069440, while the sum is 82.

The spelling of 29849853218887 in words is "twenty-nine trillion, eight hundred forty-nine billion, eight hundred fifty-three million, two hundred eighteen thousand, eight hundred eighty-seven".