18694052038716 has 12 divisors (see below), whose sum is σ = 43619454757032. Its totient is φ = 6231350679568.

The previous prime is 18694052038663. The next prime is 18694052038729. The reversal of 18694052038716 is 61783025049681.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18694052038716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778918834935 + ... + 778918834958.

It is an arithmetic number, because the mean of its divisors is an integer number (3634954563086).

It is a 1-persistent number, because it is pandigital, but 2⋅18694052038716 = 37388104077432 is not.

Almost surely, 2^{18694052038716} is an apocalyptic number.

It is an amenable number.

18694052038716 is an abundant number, since it is smaller than the sum of its proper divisors (24925402718316).

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

18694052038716 is a wasteful number, since it uses less digits than its factorization.

18694052038716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557837669900 (or 1557837669898 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 18694052038716 in words is "eighteen trillion, six hundred ninety-four billion, fifty-two million, thirty-eight thousand, seven hundred sixteen".