5178838669 has 2 divisors, whose sum is σ = 5178838670. Its totient is φ = 5178838668.

The previous prime is 5178838603. The next prime is 5178838697. The reversal of 5178838669 is 9668388715.

5178838669 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5144475625 + 34363044 = 71725^2 + 5862^2 .

It is a cyclic number.

It is not a de Polignac number, because 5178838669 - 2⁷ = 5178838541 is a prime.

It is a super-2 number, since 2×5178838669² = 53640739919059383122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5178808669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2589419334 + 2589419335.

It is an arithmetic number, because the mean of its divisors is an integer number (2589419335).

Almost surely, 2^5178838669 is an apocalyptic number.

It is an amenable number.

5178838669 is a deficient number, since it is larger than the sum of its proper divisors (1).

5178838669 is an equidigital number, since it uses as much as digits as its factorization.

5178838669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 61.

The square root of 5178838669 is about 71964.1484977068. The cubic root of 5178838669 is about 1730.1249165261.

The spelling of 5178838669 in words is "five billion, one hundred seventy-eight million, eight hundred thirty-eight thousand, six hundred sixty-nine".