2123791488000 has 1760 divisors, whose sum is σ = 9745726518528. Its totient is φ = 447897600000.

The previous prime is 2123791487963. The next prime is 2123791488001. The reversal of 2123791488000 is 8841973212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123791488001) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 943486875 + ... + 943489125.

Almost surely, 2^{2123791488000} is an apocalyptic number.

2123791488000 is a gapful number since it is divisible by the number (20) 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 2123791488000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4872863259264).

2123791488000 is an abundant number, since it is smaller than the sum of its proper divisors (7621935030528).

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

2123791488000 is a wasteful number, since it uses less digits than its factorization.

2123791488000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318 (or 2281 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 2123791488000 in words is "two trillion, one hundred twenty-three billion, seven hundred ninety-one million, four hundred eighty-eight thousand".