29897684652169 has 8 divisors (see below), whose sum is σ = 31201157391552. Its totient is φ = 28594509696720.

The previous prime is 29897684652079. The next prime is 29897684652181. The reversal of 29897684652169 is 96125648679892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29897684652169 - 2¹⁷ = 29897684521097 is a prime.

It is a super-2 number, since 2×29897684652169² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29897684652092 and 29897684652101.

It is not an unprimeable number, because it can be changed into a prime (29897684652569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74240794 + ... + 74642419.

It is an arithmetic number, because the mean of its divisors is an integer number (3900144673944).

Almost surely, 2^{29897684652169} is an apocalyptic number.

It is an amenable number.

29897684652169 is a deficient number, since it is larger than the sum of its proper divisors (1303472739383).

29897684652169 is a wasteful number, since it uses less digits than its factorization.

29897684652169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148891967.

The product of its digits is 5643509760, while the sum is 82.

The spelling of 29897684652169 in words is "twenty-nine trillion, eight hundred ninety-seven billion, six hundred eighty-four million, six hundred fifty-two thousand, one hundred sixty-nine".