29117973612 has 96 divisors (see below), whose sum is σ = 83752123392. Its totient is φ = 7667410176.

The previous prime is 29117973571. The next prime is 29117973617. The reversal of 29117973612 is 21637971192.

It is not an unprimeable number, because it can be changed into a prime (29117973617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685918 + ... + 727130.

It is an arithmetic number, because the mean of its divisors is an integer number (872417952).

Almost surely, 2^29117973612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29117973612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41876061696).

29117973612 is an abundant number, since it is smaller than the sum of its proper divisors (54634149780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29117973612 is a wasteful number, since it uses less digits than its factorization.

29117973612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41887 (or 41885 counting only the distinct ones).

The product of its digits is 285768, while the sum is 48.

The spelling of 29117973612 in words is "twenty-nine billion, one hundred seventeen million, nine hundred seventy-three thousand, six hundred twelve".