29986135081 has 8 divisors (see below), whose sum is σ = 34272748224. Its totient is φ = 25700241840.

The previous prime is 29986135079. The next prime is 29986135093. The reversal of 29986135081 is 18053168992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29986135081 - 2¹ = 29986135079 is a prime.

It is a super-2 number, since 2×29986135081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29986135381) 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 7 ways as a sum of consecutive naturals, for example, 87550 + ... + 260071.

It is an arithmetic number, because the mean of its divisors is an integer number (4284093528).

Almost surely, 2^29986135081 is an apocalyptic number.

It is an amenable number.

29986135081 is a deficient number, since it is larger than the sum of its proper divisors (4286613143).

29986135081 is a wasteful number, since it uses less digits than its factorization.

29986135081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359951.

The product of its (nonzero) digits is 933120, while the sum is 52.

The spelling of 29986135081 in words is "twenty-nine billion, nine hundred eighty-six million, one hundred thirty-five thousand, eighty-one".