2105345905748 has 12 divisors (see below), whose sum is σ = 3687821340000. Its totient is φ = 1051682665752.

The previous prime is 2105345905739. The next prime is 2105345905757. The reversal of 2105345905748 is 8475095435012.

It is an interprime number because it is at equal distance from previous prime (2105345905739) and next prime (2105345905757).

It is a self number, because there is not a number n which added to its sum of digits gives 2105345905748.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247566998 + ... + 247575501.

It is an arithmetic number, because the mean of its divisors is an integer number (307318445000).

Almost surely, 2^{2105345905748} is an apocalyptic number.

It is an amenable number.

2105345905748 is a deficient number, since it is larger than the sum of its proper divisors (1582475434252).

2105345905748 is a wasteful number, since it uses less digits than its factorization.

2105345905748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495143566 (or 495143564 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 53.

The spelling of 2105345905748 in words is "two trillion, one hundred five billion, three hundred forty-five million, nine hundred five thousand, seven hundred forty-eight".