2105783408280 has 192 divisors, whose sum is σ = 6701887745280. Its totient is φ = 528319418880.

The previous prime is 2105783408279. The next prime is 2105783408291. The reversal of 2105783408280 is 828043875012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10167439 + ... + 10372481.

It is an arithmetic number, because the mean of its divisors is an integer number (34905665340).

Almost surely, 2^{2105783408280} is an apocalyptic number.

2105783408280 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 2105783408280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3350943872640).

2105783408280 is an abundant number, since it is smaller than the sum of its proper divisors (4596104337000).

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

2105783408280 is a wasteful number, since it uses less digits than its factorization.

2105783408280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205202 (or 205137 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 2105783408280 in words is "two trillion, one hundred five billion, seven hundred eighty-three million, four hundred eight thousand, two hundred eighty".