16293878686068 has 12 divisors (see below), whose sum is σ = 38019050267520. Its totient is φ = 5431292895352.

The previous prime is 16293878686067. The next prime is 16293878686069. The reversal of 16293878686068 is 86068687839261.

It is an interprime number because it is at equal distance from previous prime (16293878686067) and next prime (16293878686069).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 16293878685984 and 16293878686002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16293878686061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678911611908 + ... + 678911611931.

It is an arithmetic number, because the mean of its divisors is an integer number (3168254188960).

Almost surely, 2^{16293878686068} is an apocalyptic number.

It is an amenable number.

16293878686068 is an abundant number, since it is smaller than the sum of its proper divisors (21725171581452).

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

16293878686068 is a wasteful number, since it uses less digits than its factorization.

16293878686068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357823223846 (or 1357823223844 counting only the distinct ones).

The product of its (nonzero) digits is 2006581248, while the sum is 78.

The spelling of 16293878686068 in words is "sixteen trillion, two hundred ninety-three billion, eight hundred seventy-eight million, six hundred eighty-six thousand, sixty-eight".