29971227163 has 2 divisors, whose sum is σ = 29971227164. Its totient is φ = 29971227162.

The previous prime is 29971227161. The next prime is 29971227193. The reversal of 29971227163 is 36172217992.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29971227163 - 2¹ = 29971227161 is a prime.

It is a super-2 number, since 2×29971227163² (a number of 22 digits) contains 22 as substring.

Together with 29971227161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (29971227161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14985613581 + 14985613582.

It is an arithmetic number, because the mean of its divisors is an integer number (14985613582).

Almost surely, 2^29971227163 is an apocalyptic number.

29971227163 is a deficient number, since it is larger than the sum of its proper divisors (1).

29971227163 is an equidigital number, since it uses as much as digits as its factorization.

29971227163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The spelling of 29971227163 in words is "twenty-nine billion, nine hundred seventy-one million, two hundred twenty-seven thousand, one hundred sixty-three".