29108019771 has 12 divisors (see below), whose sum is σ = 43872957648. Its totient is φ = 18561635664.

The previous prime is 29108019767. The next prime is 29108019791. The reversal of 29108019771 is 17791080192.

It is a happy number.

It is not a de Polignac number, because 29108019771 - 2² = 29108019767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29108019761) 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 in 11 ways as a sum of consecutive naturals, for example, 70309020 + ... + 70309433.

It is an arithmetic number, because the mean of its divisors is an integer number (3656079804).

Almost surely, 2^29108019771 is an apocalyptic number.

29108019771 is a deficient number, since it is larger than the sum of its proper divisors (14764937877).

29108019771 is a wasteful number, since it uses less digits than its factorization.

29108019771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140618482 (or 140618479 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 45.

The spelling of 29108019771 in words is "twenty-nine billion, one hundred eight million, nineteen thousand, seven hundred seventy-one".