5387519136609 has 27 divisors (see below), whose sum is σ = 7803647091513. Its totient is φ = 3581703323712.

The previous prime is 5387519136607. The next prime is 5387519136631. The reversal of 5387519136609 is 9066319157835.

The square root of 5387519136609 is 2321103.

It is a perfect power (a square), and thus also a powerful number.

5387519136609 is a `hidden beast` number, since 5 + 3 + 8 + 7 + 5 + 1 + 9 + 13 + 6 + 609 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 436983136209 + 4950536000400 = 661047^2 + 2224980^2 .

It is not a de Polignac number, because 5387519136609 - 2¹ = 5387519136607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5387519136607) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3182231367 + ... + 3182233059.

Almost surely, 2^{5387519136609} is an apocalyptic number.

5387519136609 is the 2321103-rd square number.

5387519136609 is the 1160552-nd centered octagonal number.

It is an amenable number.

5387519136609 is a deficient number, since it is larger than the sum of its proper divisors (2416127954904).

5387519136609 is an frugal number, since it uses more digits than its factorization.

5387519136609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 63.

The spelling of 5387519136609 in words is "five trillion, three hundred eighty-seven billion, five hundred nineteen million, one hundred thirty-six thousand, six hundred nine".