5426878309 has 2 divisors, whose sum is σ = 5426878310. Its totient is φ = 5426878308.

The previous prime is 5426878307. The next prime is 5426878337. The reversal of 5426878309 is 9038786245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4906582209 + 520296100 = 70047^2 + 22810^2 .

It is a cyclic number.

It is not a de Polignac number, because 5426878309 - 2¹ = 5426878307 is a prime.

Together with 5426878307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5426878307) 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, 2713439154 + 2713439155.

It is an arithmetic number, because the mean of its divisors is an integer number (2713439155).

Almost surely, 2^5426878309 is an apocalyptic number.

It is an amenable number.

5426878309 is a deficient number, since it is larger than the sum of its proper divisors (1).

5426878309 is an equidigital number, since it uses as much as digits as its factorization.

5426878309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The square root of 5426878309 is about 73667.3490021190. The cubic root of 5426878309 is about 1757.3166656795.

The spelling of 5426878309 in words is "five billion, four hundred twenty-six million, eight hundred seventy-eight thousand, three hundred nine".