78823049147 has 2 divisors, whose sum is σ = 78823049148. Its totient is φ = 78823049146.

The previous prime is 78823049117. The next prime is 78823049183. The reversal of 78823049147 is 74194032887.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78823049147 - 2⁸ = 78823048891 is a prime.

It is not a weakly prime, because it can be changed into another prime (78823049117) 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, 39411524573 + 39411524574.

It is an arithmetic number, because the mean of its divisors is an integer number (39411524574).

Almost surely, 2^78823049147 is an apocalyptic number.

78823049147 is a deficient number, since it is larger than the sum of its proper divisors (1).

78823049147 is an equidigital number, since it uses as much as digits as its factorization.

78823049147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 78823049147 in words is "seventy-eight billion, eight hundred twenty-three million, forty-nine thousand, one hundred forty-seven".