29965909172 has 12 divisors (see below), whose sum is σ = 52485439776. Its totient is φ = 14970069240.

The previous prime is 29965909151. The next prime is 29965909199. The reversal of 29965909172 is 27190956992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3216104 + ... + 3225407.

It is an arithmetic number, because the mean of its divisors is an integer number (4373786648).

Almost surely, 2^29965909172 is an apocalyptic number.

It is an amenable number.

29965909172 is a deficient number, since it is larger than the sum of its proper divisors (22519530604).

29965909172 is a wasteful number, since it uses less digits than its factorization.

29965909172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442678 (or 6442676 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 59.

The spelling of 29965909172 in words is "twenty-nine billion, nine hundred sixty-five million, nine hundred nine thousand, one hundred seventy-two".