2018126803968 has 264 divisors, whose sum is σ = 6592506953760. Its totient is φ = 611552747520.

The previous prime is 2018126803967. The next prime is 2018126803991. The reversal of 2018126803968 is 8693086218102.

It is a tau number, because it is divible by the number of its divisors (264).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018126803967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2368498 + ... + 3105806.

Almost surely, 2^{2018126803968} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018126803968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3296253476880).

2018126803968 is an abundant number, since it is smaller than the sum of its proper divisors (4574380149792).

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

2018126803968 is an equidigital number, since it uses as much as digits as its factorization.

2018126803968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737355 (or 737325 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 2018126803968 in words is "two trillion, eighteen billion, one hundred twenty-six million, eight hundred three thousand, nine hundred sixty-eight".