5487881309 has 4 divisors (see below), whose sum is σ = 5493906240. Its totient is φ = 5481856380.

The previous prime is 5487881281. The next prime is 5487881339. The reversal of 5487881309 is 9031887845.

5487881309 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: 9031887845 = 5 ⋅1806377569.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5487881309 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 (5487881339) 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, 3011099 + ... + 3012920.

It is an arithmetic number, because the mean of its divisors is an integer number (1373476560).

Almost surely, 2^5487881309 is an apocalyptic number.

It is an amenable number.

5487881309 is a deficient number, since it is larger than the sum of its proper divisors (6024931).

5487881309 is an equidigital number, since it uses as much as digits as its factorization.

5487881309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6024930.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 5487881309 is about 74080.2356165260. The cubic root of 5487881309 is about 1763.8767536651.

The spelling of 5487881309 in words is "five billion, four hundred eighty-seven million, eight hundred eighty-one thousand, three hundred nine".