5617121609 has 8 divisors (see below), whose sum is σ = 6231630240. Its totient is φ = 5019923200.

The previous prime is 5617121599. The next prime is 5617121641. The reversal of 5617121609 is 9061217165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5617121609 - 2⁴ = 5617121593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5617127609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4326872 + ... + 4328169.

It is an arithmetic number, because the mean of its divisors is an integer number (778953780).

Almost surely, 2^5617121609 is an apocalyptic number.

5617121609 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

5617121609 is a deficient number, since it is larger than the sum of its proper divisors (614508631).

5617121609 is a wasteful number, since it uses less digits than its factorization.

5617121609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8655111.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 5617121609 is about 74947.4589896149. The cubic root of 5617121609 is about 1777.6159651567.

The spelling of 5617121609 in words is "five billion, six hundred seventeen million, one hundred twenty-one thousand, six hundred nine".