18756111768968 has 64 divisors (see below), whose sum is σ = 41578363929600. Its totient is φ = 7761004796160.

The previous prime is 18756111768943. The next prime is 18756111769009. The reversal of 18756111768968 is 86986711165781.

It is a junction number, because it is equal to n+sod(n) for n = 18756111768895 and 18756111768904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161011721 + ... + 161128167.

It is an arithmetic number, because the mean of its divisors is an integer number (649661936400).

Almost surely, 2^{18756111768968} is an apocalyptic number.

It is an amenable number.

18756111768968 is an abundant number, since it is smaller than the sum of its proper divisors (22822252160632).

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

18756111768968 is a wasteful number, since it uses less digits than its factorization.

18756111768968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215670 (or 215666 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 74.

The spelling of 18756111768968 in words is "eighteen trillion, seven hundred fifty-six billion, one hundred eleven million, seven hundred sixty-eight thousand, nine hundred sixty-eight".