5078423509 has 2 divisors, whose sum is σ = 5078423510. Its totient is φ = 5078423508.

The previous prime is 5078423489. The next prime is 5078423527. The reversal of 5078423509 is 9053248705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2982798225 + 2095625284 = 54615^2 + 45778^2 .

It is a cyclic number.

It is not a de Polignac number, because 5078423509 - 2⁷ = 5078423381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5078423809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2539211754 + 2539211755.

It is an arithmetic number, because the mean of its divisors is an integer number (2539211755).

Almost surely, 2^5078423509 is an apocalyptic number.

It is an amenable number.

5078423509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5078423509 is an equidigital number, since it uses as much as digits as its factorization.

5078423509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 5078423509 is about 71263.0585156152. The cubic root of 5078423509 is about 1718.8697628080.

The spelling of 5078423509 in words is "five billion, seventy-eight million, four hundred twenty-three thousand, five hundred nine".