10818609647 has 4 divisors (see below), whose sum is σ = 10925724696. Its totient is φ = 10711494600.

The previous prime is 10818609643. The next prime is 10818609649. The reversal of 10818609647 is 74690681801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10818609647 - 2² = 10818609643 is a prime.

It is a super-2 number, since 2×10818609647² (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 = 10818609595 and 10818609604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10818609643) 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, 53557373 + ... + 53557574.

It is an arithmetic number, because the mean of its divisors is an integer number (2731431174).

Almost surely, 2^10818609647 is an apocalyptic number.

10818609647 is a deficient number, since it is larger than the sum of its proper divisors (107115049).

10818609647 is a wasteful number, since it uses less digits than its factorization.

10818609647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107115048.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 10818609647 in words is "ten billion, eight hundred eighteen million, six hundred nine thousand, six hundred forty-seven".