2178790992000 has 1536 divisors, whose sum is σ = 9651073536000. Its totient is φ = 459679334400.

The previous prime is 2178790991959. The next prime is 2178790992011. The reversal of 2178790992000 is 2990978712.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 908206801 + ... + 908209199.

It is an arithmetic number, because the mean of its divisors is an integer number (6283251000).

Almost surely, 2^{2178790992000} is an apocalyptic number.

2178790992000 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 2178790992000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4825536768000).

2178790992000 is an abundant number, since it is smaller than the sum of its proper divisors (7472282544000).

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

2178790992000 is a wasteful number, since it uses less digits than its factorization.

2178790992000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2486 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The spelling of 2178790992000 in words is "two trillion, one hundred seventy-eight billion, seven hundred ninety million, nine hundred ninety-two thousand".