18768691876660 has 96 divisors (see below), whose sum is σ = 43298271660672. Its totient is φ = 6777311761920.

The previous prime is 18768691876631. The next prime is 18768691876663. The reversal of 18768691876660 is 6667819686781.

It is a super-2 number, since 2×18768691876660² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18768691876663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31177474 + ... + 31773766.

It is an arithmetic number, because the mean of its divisors is an integer number (451023663132).

Almost surely, 2^{18768691876660} is an apocalyptic number.

18768691876660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18768691876660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21649135830336).

18768691876660 is an abundant number, since it is smaller than the sum of its proper divisors (24529579784012).

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

18768691876660 is a wasteful number, since it uses less digits than its factorization.

18768691876660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597313 (or 597311 counting only the distinct ones).

The product of its (nonzero) digits is 1755758592, while the sum is 79.

The spelling of 18768691876660 in words is "eighteen trillion, seven hundred sixty-eight billion, six hundred ninety-one million, eight hundred seventy-six thousand, six hundred sixty".