29929081908 has 24 divisors (see below), whose sum is σ = 76183117920. Its totient is φ = 9069418720.

The previous prime is 29929081901. The next prime is 29929081993. The reversal of 29929081908 is 80918092992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29929081901) 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, 113367603 + ... + 113367866.

It is an arithmetic number, because the mean of its divisors is an integer number (3174296580).

Almost surely, 2^29929081908 is an apocalyptic number.

It is an amenable number.

29929081908 is an abundant number, since it is smaller than the sum of its proper divisors (46254036012).

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

29929081908 is a wasteful number, since it uses less digits than its factorization.

29929081908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226735487 (or 226735485 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 57.

The spelling of 29929081908 in words is "twenty-nine billion, nine hundred twenty-nine million, eighty-one thousand, nine hundred eight".