29981168793 has 32 divisors (see below), whose sum is σ = 45067898880. Its totient is φ = 19694661840.

The previous prime is 29981168761. The next prime is 29981168869. The reversal of 29981168793 is 39786118992.

It is not a de Polignac number, because 29981168793 - 2⁵ = 29981168761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29981168793.

It is not an unprimeable number, because it can be changed into a prime (29981168743) 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 31 ways as a sum of consecutive naturals, for example, 4564930 + ... + 4571492.

It is an arithmetic number, because the mean of its divisors is an integer number (1408371840).

Almost surely, 2^29981168793 is an apocalyptic number.

It is an amenable number.

29981168793 is a deficient number, since it is larger than the sum of its proper divisors (15086730087).

29981168793 is a wasteful number, since it uses less digits than its factorization.

29981168793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9026 (or 9020 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The spelling of 29981168793 in words is "twenty-nine billion, nine hundred eighty-one million, one hundred sixty-eight thousand, seven hundred ninety-three".