808478903279 has 2 divisors, whose sum is σ = 808478903280. Its totient is φ = 808478903278.

The previous prime is 808478903227. The next prime is 808478903303. The reversal of 808478903279 is 972309874808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 808478903279 - 2³⁶ = 739759426543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808478903209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404239451639 + 404239451640.

It is an arithmetic number, because the mean of its divisors is an integer number (404239451640).

Almost surely, 2^808478903279 is an apocalyptic number.

808478903279 is a deficient number, since it is larger than the sum of its proper divisors (1).

808478903279 is an equidigital number, since it uses as much as digits as its factorization.

808478903279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48771072, while the sum is 65.

The spelling of 808478903279 in words is "eight hundred eight billion, four hundred seventy-eight million, nine hundred three thousand, two hundred seventy-nine".