167979079789 has 2 divisors, whose sum is σ = 167979079790. Its totient is φ = 167979079788.

The previous prime is 167979079771. The next prime is 167979079811. The reversal of 167979079789 is 987970979761.

167979079789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167827050889 + 152028900 = 409667^2 + 12330^2 .

It is a cyclic number.

It is not a de Polignac number, because 167979079789 - 2¹³ = 167979071597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167979079739) 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, 83989539894 + 83989539895.

It is an arithmetic number, because the mean of its divisors is an integer number (83989539895).

Almost surely, 2^167979079789 is an apocalyptic number.

It is an amenable number.

167979079789 is a deficient number, since it is larger than the sum of its proper divisors (1).

167979079789 is an equidigital number, since it uses as much as digits as its factorization.

167979079789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756142128, while the sum is 79.

The spelling of 167979079789 in words is "one hundred sixty-seven billion, nine hundred seventy-nine million, seventy-nine thousand, seven hundred eighty-nine".