2049905400911 has 2 divisors, whose sum is σ = 2049905400912. Its totient is φ = 2049905400910.

The previous prime is 2049905400887. The next prime is 2049905400967. The reversal of 2049905400911 is 1190045099402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2049905400911 - 2⁶ = 2049905400847 is a prime.

It is a super-2 number, since 2×2049905400911² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2049905400311) 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 as a sum of consecutive naturals, namely, 1024952700455 + 1024952700456.

It is an arithmetic number, because the mean of its divisors is an integer number (1024952700456).

Almost surely, 2^{2049905400911} is an apocalyptic number.

2049905400911 is a deficient number, since it is larger than the sum of its proper divisors (1).

2049905400911 is an equidigital number, since it uses as much as digits as its factorization.

2049905400911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 2049905400911 in words is "two trillion, forty-nine billion, nine hundred five million, four hundred thousand, nine hundred eleven".