29138367839556 has 24 divisors (see below), whose sum is σ = 68947123904064. Its totient is φ = 9575989430560.

The previous prime is 29138367839549. The next prime is 29138367839569. The reversal of 29138367839556 is 65593876383192.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17099980275 + ... + 17099981978.

It is an arithmetic number, because the mean of its divisors is an integer number (2872796829336).

Almost surely, 2^{29138367839556} is an apocalyptic number.

It is an amenable number.

29138367839556 is an abundant number, since it is smaller than the sum of its proper divisors (39808756064508).

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

29138367839556 is a wasteful number, since it uses less digits than its factorization.

29138367839556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34199962331 (or 34199962329 counting only the distinct ones).

The product of its digits is 1763596800, while the sum is 75.

The spelling of 29138367839556 in words is "twenty-nine trillion, one hundred thirty-eight billion, three hundred sixty-seven million, eight hundred thirty-nine thousand, five hundred fifty-six".