5405426809 has 2 divisors, whose sum is σ = 5405426810. Its totient is φ = 5405426808.

The previous prime is 5405426797. The next prime is 5405426813. The reversal of 5405426809 is 9086245045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3457087209 + 1948339600 = 58797^2 + 44140^2 .

It is a cyclic number.

It is not a de Polignac number, because 5405426809 - 2¹⁷ = 5405295737 is a prime.

It is not a weakly prime, because it can be changed into another prime (5405426009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2702713404 + 2702713405.

It is an arithmetic number, because the mean of its divisors is an integer number (2702713405).

Almost surely, 2^5405426809 is an apocalyptic number.

It is an amenable number.

5405426809 is a deficient number, since it is larger than the sum of its proper divisors (1).

5405426809 is an equidigital number, since it uses as much as digits as its factorization.

5405426809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 5405426809 is about 73521.6077694170. The cubic root of 5405426809 is about 1754.9981530434.

The spelling of 5405426809 in words is "five billion, four hundred five million, four hundred twenty-six thousand, eight hundred nine".