29998168920738 has 48 divisors (see below), whose sum is σ = 67031250164736. Its totient is φ = 9689941366560.

The previous prime is 29998168920619. The next prime is 29998168920743. The reversal of 29998168920738 is 83702986189992.

29998168920738 is a `hidden beast` number, since 299 + 9 + 8 + 16 + 89 + 207 + 38 = 666.

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 23 ways as a sum of consecutive naturals, for example, 152489593 + ... + 152686188.

It is an arithmetic number, because the mean of its divisors is an integer number (1396484378432).

Almost surely, 2^{29998168920738} is an apocalyptic number.

29998168920738 is an abundant number, since it is smaller than the sum of its proper divisors (37033081243998).

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

29998168920738 is a wasteful number, since it uses less digits than its factorization.

29998168920738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305175959 (or 305175956 counting only the distinct ones).

The product of its (nonzero) digits is 1693052928, while the sum is 81.

The spelling of 29998168920738 in words is "twenty-nine trillion, nine hundred ninety-eight billion, one hundred sixty-eight million, nine hundred twenty thousand, seven hundred thirty-eight".