2810811049109 has 16 divisors (see below), whose sum is σ = 3215195762688. Its totient is φ = 2407136859312.

The previous prime is 2810811049093. The next prime is 2810811049133. The reversal of 2810811049109 is 9019401180182.

It is a cyclic number.

It is not a de Polignac number, because 2810811049109 - 2⁴ = 2810811049093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2810811049109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2810811049169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119867624 + ... + 119891070.

It is an arithmetic number, because the mean of its divisors is an integer number (200949735168).

Almost surely, 2^{2810811049109} is an apocalyptic number.

It is an amenable number.

2810811049109 is a deficient number, since it is larger than the sum of its proper divisors (404384713579).

2810811049109 is a wasteful number, since it uses less digits than its factorization.

2810811049109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37864.

The product of its (nonzero) digits is 41472, while the sum is 44.

The spelling of 2810811049109 in words is "two trillion, eight hundred ten billion, eight hundred eleven million, forty-nine thousand, one hundred nine".