179949469363819 has 2 divisors, whose sum is σ = 179949469363820. Its totient is φ = 179949469363818.

The previous prime is 179949469363817. The next prime is 179949469363831. The reversal of 179949469363819 is 918363964949971.

179949469363819 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 is an emirp because it is prime and its reverse (918363964949971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 179949469363819 - 2¹ = 179949469363817 is a prime.

It is a super-2 number, since 2×179949469363819² (a number of 29 digits) contains 22 as substring.

Together with 179949469363817, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 179949469363819.

It is not a weakly prime, because it can be changed into another prime (179949469363813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89974734681909 + 89974734681910.

It is an arithmetic number, because the mean of its divisors is an integer number (89974734681910).

Almost surely, 2^{179949469363819} is an apocalyptic number.

179949469363819 is a deficient number, since it is larger than the sum of its proper divisors (1).

179949469363819 is an equidigital number, since it uses as much as digits as its factorization.

179949469363819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17142160896, while the sum is 88.

The spelling of 179949469363819 in words is "one hundred seventy-nine trillion, nine hundred forty-nine billion, four hundred sixty-nine million, three hundred sixty-three thousand, eight hundred nineteen".