2126911806844 has 24 divisors (see below), whose sum is σ = 4274176838400. Its totient is φ = 915895036080.

The previous prime is 2126911806793. The next prime is 2126911806869. The reversal of 2126911806844 is 4486081196212.

It is a junction number, because it is equal to n+sod(n) for n = 2126911806791 and 2126911806800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272075604 + ... + 1272077275.

It is an arithmetic number, because the mean of its divisors is an integer number (178090701600).

Almost surely, 2^{2126911806844} is an apocalyptic number.

It is an amenable number.

2126911806844 is an abundant number, since it is smaller than the sum of its proper divisors (2147265031556).

2126911806844 is a wasteful number, since it uses less digits than its factorization.

2126911806844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544152913 (or 2544152911 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 2126911806844 in words is "two trillion, one hundred twenty-six billion, nine hundred eleven million, eight hundred six thousand, eight hundred forty-four".