14818697557 has 4 divisors (see below), whose sum is σ = 14819039116. Its totient is φ = 14818356000.

The previous prime is 14818697521. The next prime is 14818697573. The reversal of 14818697557 is 75579681841.

14818697557 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 75579681841 = 7109 ⋅10631549.

It can be written as a sum of positive squares in 2 ways, for example, as 13988739076 + 829958481 = 118274^2 + 28809^2 .

It is a cyclic number.

It is not a de Polignac number, because 14818697557 - 2¹¹ = 14818695509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14818697495 and 14818697504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14818617557) 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, 94278 + ... + 196279.

It is an arithmetic number, because the mean of its divisors is an integer number (3704759779).

Almost surely, 2^14818697557 is an apocalyptic number.

It is an amenable number.

14818697557 is a deficient number, since it is larger than the sum of its proper divisors (341559).

14818697557 is an equidigital number, since it uses as much as digits as its factorization.

14818697557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341558.

The product of its digits is 16934400, while the sum is 61.

The spelling of 14818697557 in words is "fourteen billion, eight hundred eighteen million, six hundred ninety-seven thousand, five hundred fifty-seven".