29108079840 has 96 divisors (see below), whose sum is σ = 104789099520. Its totient is φ = 6653274624.

The previous prime is 29108079817. The next prime is 29108079841. The reversal of 29108079840 is 4897080192.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 29108079840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29108079841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4328200 + ... + 4334919.

It is an arithmetic number, because the mean of its divisors is an integer number (1091553120).

Almost surely, 2^29108079840 is an apocalyptic number.

29108079840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29108079840 is an abundant number, since it is smaller than the sum of its proper divisors (75681019680).

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

29108079840 is a wasteful number, since it uses less digits than its factorization.

29108079840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663144 (or 8663136 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 29108079840 in words is "twenty-nine billion, one hundred eight million, seventy-nine thousand, eight hundred forty".