2105093774906 has 8 divisors (see below), whose sum is σ = 3266524823220. Its totient is φ = 1016252167168.

The previous prime is 2105093774881. The next prime is 2105093774909. The reversal of 2105093774906 is 6094773905012.

It can be written as a sum of positive squares in 2 ways, for example, as 1968995497681 + 136098277225 = 1403209^2 + 368915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2105093774906² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2105093774909) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18147360071 + ... + 18147360186.

Almost surely, 2^{2105093774906} is an apocalyptic number.

2105093774906 is a deficient number, since it is larger than the sum of its proper divisors (1161431048314).

2105093774906 is a wasteful number, since it uses less digits than its factorization.

2105093774906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36294720288.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 2105093774906 in words is "two trillion, one hundred five billion, ninety-three million, seven hundred seventy-four thousand, nine hundred six".