29689179197 has 2 divisors, whose sum is σ = 29689179198. Its totient is φ = 29689179196.

The previous prime is 29689179133. The next prime is 29689179199. The reversal of 29689179197 is 79197198692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26240436121 + 3448743076 = 161989^2 + 58726^2 .

It is a cyclic number.

It is not a de Polignac number, because 29689179197 - 2⁶ = 29689179133 is a prime.

It is a super-2 number, since 2×29689179197² (a number of 22 digits) contains 22 as substring.

Together with 29689179199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29689179199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14844589598 + 14844589599.

It is an arithmetic number, because the mean of its divisors is an integer number (14844589599).

Almost surely, 2^29689179197 is an apocalyptic number.

It is an amenable number.

29689179197 is a deficient number, since it is larger than the sum of its proper divisors (1).

29689179197 is an equidigital number, since it uses as much as digits as its factorization.

29689179197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30862944, while the sum is 68.

The spelling of 29689179197 in words is "twenty-nine billion, six hundred eighty-nine million, one hundred seventy-nine thousand, one hundred ninety-seven".