5135988817 has 4 divisors (see below), whose sum is σ = 5136171376. Its totient is φ = 5135806260.

The previous prime is 5135988799. The next prime is 5135988859. The reversal of 5135988817 is 7188895315.

It is a happy number.

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 5135988817 - 2¹¹ = 5135986769 is a prime.

It is a super-2 number, since 2×5135988817² = 52756762256698118978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5135988617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39159 + ... + 108652.

It is an arithmetic number, because the mean of its divisors is an integer number (1284042844).

Almost surely, 2^5135988817 is an apocalyptic number.

It is an amenable number.

5135988817 is a deficient number, since it is larger than the sum of its proper divisors (182559).

5135988817 is a wasteful number, since it uses less digits than its factorization.

5135988817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182558.

The product of its digits is 2419200, while the sum is 55.

The square root of 5135988817 is about 71665.8134468590. The cubic root of 5135988817 is about 1725.3399950988.

The spelling of 5135988817 in words is "five billion, one hundred thirty-five million, nine hundred eighty-eight thousand, eight hundred seventeen".