29993708590838 has 4 divisors (see below), whose sum is σ = 44990562886260. Its totient is φ = 14996854295418.

The previous prime is 29993708590801. The next prime is 29993708590919. The reversal of 29993708590838 is 83809580739992.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7498427147708 + ... + 7498427147711.

It is an arithmetic number, because the mean of its divisors is an integer number (11247640721565).

Almost surely, 2^{29993708590838} is an apocalyptic number.

29993708590838 is a deficient number, since it is larger than the sum of its proper divisors (14996854295422).

29993708590838 is a wasteful number, since it uses less digits than its factorization.

29993708590838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14996854295421.

The product of its (nonzero) digits is 2116316160, while the sum is 80.

The spelling of 29993708590838 in words is "twenty-nine trillion, nine hundred ninety-three billion, seven hundred eight million, five hundred ninety thousand, eight hundred thirty-eight".