2808641947231 has 2 divisors, whose sum is σ = 2808641947232. Its totient is φ = 2808641947230.

The previous prime is 2808641947151. The next prime is 2808641947273. The reversal of 2808641947231 is 1327491468082.

2808641947231 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 is a cyclic number.

It is not a de Polignac number, because 2808641947231 - 2¹⁷ = 2808641816159 is a prime.

It is a super-2 number, since 2×2808641947231² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2808641942231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404320973615 + 1404320973616.

It is an arithmetic number, because the mean of its divisors is an integer number (1404320973616).

Almost surely, 2^{2808641947231} is an apocalyptic number.

2808641947231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808641947231 is an equidigital number, since it uses as much as digits as its factorization.

2808641947231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 2808641947231 in words is "two trillion, eight hundred eight billion, six hundred forty-one million, nine hundred forty-seven thousand, two hundred thirty-one".