179949469373819 has 2 divisors, whose sum is σ = 179949469373820. Its totient is φ = 179949469373818.

The previous prime is 179949469373693. The next prime is 179949469373857. The reversal of 179949469373819 is 918373964949971.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 179949469373819 - 2²⁴ = 179949452596603 is a prime.

It is a super-2 number, since 2×179949469373819² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (179949469363819) 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, 89974734686909 + 89974734686910.

It is an arithmetic number, because the mean of its divisors is an integer number (89974734686910).

Almost surely, 2^{179949469373819} is an apocalyptic number.

179949469373819 is a deficient number, since it is larger than the sum of its proper divisors (1).

179949469373819 is an equidigital number, since it uses as much as digits as its factorization.

179949469373819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19999187712, while the sum is 89.

The spelling of 179949469373819 in words is "one hundred seventy-nine trillion, nine hundred forty-nine billion, four hundred sixty-nine million, three hundred seventy-three thousand, eight hundred nineteen".