8478905278211 has 2 divisors, whose sum is σ = 8478905278212. Its totient is φ = 8478905278210.

The previous prime is 8478905278177. The next prime is 8478905278219. The reversal of 8478905278211 is 1128725098748.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8478905278211 - 2¹⁸ = 8478905016067 is a prime.

It is a super-2 number, since 2×8478905278211² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8478905278219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239452639105 + 4239452639106.

It is an arithmetic number, because the mean of its divisors is an integer number (4239452639106).

Almost surely, 2^{8478905278211} is an apocalyptic number.

8478905278211 is a deficient number, since it is larger than the sum of its proper divisors (1).

8478905278211 is an equidigital number, since it uses as much as digits as its factorization.

8478905278211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18063360, while the sum is 62.

The spelling of 8478905278211 in words is "eight trillion, four hundred seventy-eight billion, nine hundred five million, two hundred seventy-eight thousand, two hundred eleven".