29982117647 has 4 divisors (see below), whose sum is σ = 30079779576. Its totient is φ = 29884455720.

The previous prime is 29982117587. The next prime is 29982117673. The reversal of 29982117647 is 74671128992.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29982117647 - 2¹⁴ = 29982101263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29982117592 and 29982117601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29982117047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48830504 + ... + 48831117.

It is an arithmetic number, because the mean of its divisors is an integer number (7519944894).

Almost surely, 2^29982117647 is an apocalyptic number.

29982117647 is a deficient number, since it is larger than the sum of its proper divisors (97661929).

29982117647 is an equidigital number, since it uses as much as digits as its factorization.

29982117647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97661928.

The product of its digits is 3048192, while the sum is 56.

The spelling of 29982117647 in words is "twenty-nine billion, nine hundred eighty-two million, one hundred seventeen thousand, six hundred forty-seven".