29814808688 has 20 divisors (see below), whose sum is σ = 66018505200. Its totient is φ = 12777775104.

The previous prime is 29814808637. The next prime is 29814808697. The reversal of 29814808688 is 88680841892.

It is a self number, because there is not a number n which added to its sum of digits gives 29814808688.

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, 133101713 + ... + 133101936.

It is an arithmetic number, because the mean of its divisors is an integer number (3300925260).

Almost surely, 2^29814808688 is an apocalyptic number.

29814808688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29814808688 is an abundant number, since it is smaller than the sum of its proper divisors (36203696512).

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

29814808688 is a wasteful number, since it uses less digits than its factorization.

29814808688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266203664 (or 266203658 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 62.

The spelling of 29814808688 in words is "twenty-nine billion, eight hundred fourteen million, eight hundred eight thousand, six hundred eighty-eight".