2081045957880 has 256 divisors, whose sum is σ = 6361373491200. Its totient is φ = 544552796160.

The previous prime is 2081045957849. The next prime is 2081045957909. The reversal of 2081045957880 is 887595401802.

It is a self number, because there is not a number n which added to its sum of digits gives 2081045957880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 806918431 + ... + 806921009.

It is an arithmetic number, because the mean of its divisors is an integer number (24849115200).

Almost surely, 2^{2081045957880} is an apocalyptic number.

2081045957880 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 2081045957880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3180686745600).

2081045957880 is an abundant number, since it is smaller than the sum of its proper divisors (4280327533320).

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

2081045957880 is a wasteful number, since it uses less digits than its factorization.

2081045957880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254 (or 3250 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 2081045957880 in words is "two trillion, eighty-one billion, forty-five million, nine hundred fifty-seven thousand, eight hundred eighty".