5287661609 has 4 divisors (see below), whose sum is σ = 5325702480. Its totient is φ = 5249620740.

The previous prime is 5287661593. The next prime is 5287661629. The reversal of 5287661609 is 9061667825.

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.

It is a cyclic number.

It is not a de Polignac number, because 5287661609 - 2⁴ = 5287661593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5287661629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19020227 + ... + 19020504.

It is an arithmetic number, because the mean of its divisors is an integer number (1331425620).

Almost surely, 2^5287661609 is an apocalyptic number.

It is an amenable number.

5287661609 is a deficient number, since it is larger than the sum of its proper divisors (38040871).

5287661609 is a wasteful number, since it uses less digits than its factorization.

5287661609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38040870.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 5287661609 is about 72716.3090991285. The cubic root of 5287661609 is about 1742.1593845923.

The spelling of 5287661609 in words is "five billion, two hundred eighty-seven million, six hundred sixty-one thousand, six hundred nine".