5178804149989 has 2 divisors, whose sum is σ = 5178804149990. Its totient is φ = 5178804149988.

The previous prime is 5178804149977. The next prime is 5178804149993. The reversal of 5178804149989 is 9899414088715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4208992805889 + 969811344100 = 2051583^2 + 984790^2 .

It is a cyclic number.

It is not a de Polignac number, because 5178804149989 - 2⁵ = 5178804149957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5178804149999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2589402074994 + 2589402074995.

It is an arithmetic number, because the mean of its divisors is an integer number (2589402074995).

Almost surely, 2^{5178804149989} is an apocalyptic number.

It is an amenable number.

5178804149989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5178804149989 is an equidigital number, since it uses as much as digits as its factorization.

5178804149989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209018880, while the sum is 73.

The spelling of 5178804149989 in words is "five trillion, one hundred seventy-eight billion, eight hundred four million, one hundred forty-nine thousand, nine hundred eighty-nine".