29055981438 has 36 divisors (see below), whose sum is σ = 69198065664. Its totient is φ = 8804842200.

The previous prime is 29055981431. The next prime is 29055981473. The reversal of 29055981438 is 83418955092.

29055981438 is a `hidden beast` number, since 2 + 9 + 0 + 5 + 598 + 1 + 43 + 8 = 666.

29055981438 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29055981431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6668158 + ... + 6672513.

Almost surely, 2^29055981438 is an apocalyptic number.

29055981438 is an abundant number, since it is smaller than the sum of its proper divisors (40142084226).

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

29055981438 is a wasteful number, since it uses less digits than its factorization.

29055981438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13340701 (or 13340687 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 29055981438 in words is "twenty-nine billion, fifty-five million, nine hundred eighty-one thousand, four hundred thirty-eight".