29906221871412 has 18 divisors (see below), whose sum is σ = 75596283063938. Its totient is φ = 9968740623792.

The previous prime is 29906221871359. The next prime is 29906221871483. The reversal of 29906221871412 is 21417812260992.

29906221871412 is a `hidden beast` number, since 2 + 9 + 9 + 0 + 6 + 2 + 218 + 7 + 1 + 412 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22302327381156 + 7603894490256 = 4722534^2 + 2757516^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 415364192623 + ... + 415364192694.

Almost surely, 2^{29906221871412} is an apocalyptic number.

It is an amenable number.

29906221871412 is an abundant number, since it is smaller than the sum of its proper divisors (45690061192526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29906221871412 is a wasteful number, since it uses less digits than its factorization.

29906221871412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830728385327 (or 830728385322 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 29906221871412 in words is "twenty-nine trillion, nine hundred six billion, two hundred twenty-one million, eight hundred seventy-one thousand, four hundred twelve".