2811873697 has 2 divisors, whose sum is σ = 2811873698. Its totient is φ = 2811873696.

The previous prime is 2811873683. The next prime is 2811873709. The reversal of 2811873697 is 7963781182.

2811873697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1437243921 + 1374629776 = 37911^2 + 37076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2811873697 is a prime.

It is not a weakly prime, because it can be changed into another prime (2811823697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1405936848 + 1405936849.

It is an arithmetic number, because the mean of its divisors is an integer number (1405936849).

Almost surely, 2^2811873697 is an apocalyptic number.

It is an amenable number.

2811873697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2811873697 is an equidigital number, since it uses as much as digits as its factorization.

2811873697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 52.

The square root of 2811873697 is about 53027.1034189121. The cubic root of 2811873697 is about 1411.4492579986.

The spelling of 2811873697 in words is "two billion, eight hundred eleven million, eight hundred seventy-three thousand, six hundred ninety-seven".