78558542143 has 2 divisors, whose sum is σ = 78558542144. Its totient is φ = 78558542142.

The previous prime is 78558542141. The next prime is 78558542173. The reversal of 78558542143 is 34124585587.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78558542143 - 2¹ = 78558542141 is a prime.

Together with 78558542141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78558542141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39279271071 + 39279271072.

It is an arithmetic number, because the mean of its divisors is an integer number (39279271072).

Almost surely, 2^78558542143 is an apocalyptic number.

78558542143 is a deficient number, since it is larger than the sum of its proper divisors (1).

78558542143 is an equidigital number, since it uses as much as digits as its factorization.

78558542143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376000, while the sum is 52.

It can be divided in two parts, 785585 and 42143, that added together give a palindrome (827728).

The spelling of 78558542143 in words is "seventy-eight billion, five hundred fifty-eight million, five hundred forty-two thousand, one hundred forty-three".