2105491282830 has 48 divisors (see below), whose sum is σ = 5895375595200. Its totient is φ = 518274777024.

The previous prime is 2105491282813. The next prime is 2105491282877. The reversal of 2105491282830 is 382821945012.

2105491282830 is a `hidden beast` number, since 2 + 1 + 0 + 5 + 491 + 2 + 82 + 83 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 899781430 + ... + 899783769.

It is an arithmetic number, because the mean of its divisors is an integer number (122820324900).

Almost surely, 2^{2105491282830} is an apocalyptic number.

2105491282830 is an abundant number, since it is smaller than the sum of its proper divisors (3789884312370).

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

2105491282830 is a wasteful number, since it uses less digits than its factorization.

2105491282830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799565225 (or 1799565222 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 2105491282830 in words is "two trillion, one hundred five billion, four hundred ninety-one million, two hundred eighty-two thousand, eight hundred thirty".