13518927757 has 4 divisors (see below), whose sum is σ = 13537730880. Its totient is φ = 13500124636.

The previous prime is 13518927749. The next prime is 13518927761. The reversal of 13518927757 is 75772981531.

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: 75772981531 = 13 ⋅5828690887.

It is a cyclic number.

It is not a de Polignac number, because 13518927757 - 2³ = 13518927749 is a prime.

It is a super-2 number, since 2×13518927757² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13518927698 and 13518927707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13518927727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9400483 + ... + 9401920.

It is an arithmetic number, because the mean of its divisors is an integer number (3384432720).

Almost surely, 2^13518927757 is an apocalyptic number.

It is an amenable number.

13518927757 is a deficient number, since it is larger than the sum of its proper divisors (18803123).

13518927757 is an equidigital number, since it uses as much as digits as its factorization.

13518927757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18803122.

The product of its digits is 3704400, while the sum is 55.

The spelling of 13518927757 in words is "thirteen billion, five hundred eighteen million, nine hundred twenty-seven thousand, seven hundred fifty-seven".