18773741818392 has 128 divisors (see below), whose sum is σ = 52494144595200. Its totient is φ = 5545576601600.

The previous prime is 18773741818367. The next prime is 18773741818409. The reversal of 18773741818392 is 29381814737781.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 12117484 + ... + 13578692.

It is an arithmetic number, because the mean of its divisors is an integer number (410110504650).

Almost surely, 2^{18773741818392} is an apocalyptic number.

18773741818392 is a gapful number since it is divisible by the number (12) 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 18773741818392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26247072297600).

18773741818392 is an abundant number, since it is smaller than the sum of its proper divisors (33720402776808).

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

18773741818392 is a wasteful number, since it uses less digits than its factorization.

18773741818392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462457 (or 1462453 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 69.

The spelling of 18773741818392 in words is "eighteen trillion, seven hundred seventy-three billion, seven hundred forty-one million, eight hundred eighteen thousand, three hundred ninety-two".