2105093774905 has 32 divisors (see below), whose sum is σ = 2770704218880. Its totient is φ = 1522696734720.

The previous prime is 2105093774881. The next prime is 2105093774909. The reversal of 2105093774905 is 5094773905012.

It is not a de Polignac number, because 2105093774905 - 2⁵ = 2105093774873 is a prime.

It is a super-2 number, since 2×2105093774905² (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 31 ways as a sum of consecutive naturals, for example, 7441972 + ... + 7719658.

It is an arithmetic number, because the mean of its divisors is an integer number (86584506840).

Almost surely, 2^{2105093774905} is an apocalyptic number.

It is an amenable number.

2105093774905 is a deficient number, since it is larger than the sum of its proper divisors (665610443975).

2105093774905 is a wasteful number, since it uses less digits than its factorization.

2105093774905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278449.

The product of its (nonzero) digits is 2381400, while the sum is 52.

The spelling of 2105093774905 in words is "two trillion, one hundred five billion, ninety-three million, seven hundred seventy-four thousand, nine hundred five".