29718252868 has 12 divisors (see below), whose sum is σ = 54744150160. Its totient is φ = 14077067112.

The previous prime is 29718252847. The next prime is 29718252869. The reversal of 29718252868 is 86825281792.

It is not an unprimeable number, because it can be changed into a prime (29718252869) 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 3 ways as a sum of consecutive naturals, for example, 195514746 + ... + 195514897.

Almost surely, 2^29718252868 is an apocalyptic number.

It is an amenable number.

29718252868 is a deficient number, since it is larger than the sum of its proper divisors (25025897292).

29718252868 is a wasteful number, since it uses less digits than its factorization.

29718252868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391029666 (or 391029664 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 58.

The spelling of 29718252868 in words is "twenty-nine billion, seven hundred eighteen million, two hundred fifty-two thousand, eight hundred sixty-eight".