189670724179 has 2 divisors, whose sum is σ = 189670724180. Its totient is φ = 189670724178.

The previous prime is 189670724147. The next prime is 189670724189. The reversal of 189670724179 is 971427076981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189670724179 - 2⁵ = 189670724147 is a prime.

It is a super-2 number, since 2×189670724179² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (189670724189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94835362089 + 94835362090.

It is an arithmetic number, because the mean of its divisors is an integer number (94835362090).

Almost surely, 2^189670724179 is an apocalyptic number.

189670724179 is a deficient number, since it is larger than the sum of its proper divisors (1).

189670724179 is an equidigital number, since it uses as much as digits as its factorization.

189670724179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 61.

The spelling of 189670724179 in words is "one hundred eighty-nine billion, six hundred seventy million, seven hundred twenty-four thousand, one hundred seventy-nine".