13791720842 has 16 divisors (see below), whose sum is σ = 21214469760. Its totient is φ = 6720924672.

The previous prime is 13791720827. The next prime is 13791720869. The reversal of 13791720842 is 24802719731.

13791720842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13791720793 and 13791720802.

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, 133367 + ... + 213002.

It is an arithmetic number, because the mean of its divisors is an integer number (1325904360).

Almost surely, 2^13791720842 is an apocalyptic number.

13791720842 is a deficient number, since it is larger than the sum of its proper divisors (7422748918).

13791720842 is a wasteful number, since it uses less digits than its factorization.

13791720842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346877.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 13791720842 in words is "thirteen billion, seven hundred ninety-one million, seven hundred twenty thousand, eight hundred forty-two".