5436859309 has 4 divisors (see below), whose sum is σ = 6213553504. Its totient is φ = 4660165116.

The previous prime is 5436859277. The next prime is 5436859321. The reversal of 5436859309 is 9039586345.

5436859309 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9039586345 = 5 ⋅1807917269.

It is a cyclic number.

It is not a de Polignac number, because 5436859309 - 2⁵ = 5436859277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5436859339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388347087 + ... + 388347100.

It is an arithmetic number, because the mean of its divisors is an integer number (1553388376).

Almost surely, 2^5436859309 is an apocalyptic number.

It is an amenable number.

5436859309 is a deficient number, since it is larger than the sum of its proper divisors (776694195).

5436859309 is an equidigital number, since it uses as much as digits as its factorization.

5436859309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776694194.

The product of its (nonzero) digits is 3499200, while the sum is 52.

The square root of 5436859309 is about 73735.0615989436. The cubic root of 5436859309 is about 1758.3933457821.

The spelling of 5436859309 in words is "five billion, four hundred thirty-six million, eight hundred fifty-nine thousand, three hundred nine".