8243718550 has 12 divisors (see below), whose sum is σ = 15333316596. Its totient is φ = 3297487400.

The previous prime is 8243718529. The next prime is 8243718551. The reversal of 8243718550 is 558173428.

It is a super-2 number, since 2×8243718550² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8243718497 and 8243718506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8243718551) 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 5 ways as a sum of consecutive naturals, for example, 82437136 + ... + 82437235.

It is an arithmetic number, because the mean of its divisors is an integer number (1277776383).

Almost surely, 2^8243718550 is an apocalyptic number.

8243718550 is a deficient number, since it is larger than the sum of its proper divisors (7089598046).

8243718550 is a wasteful number, since it uses less digits than its factorization.

8243718550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164874383 (or 164874378 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 8243718550 is about 90794.9257943416. The cubic root of 8243718550 is about 2020.1070549086.

The spelling of 8243718550 in words is "eight billion, two hundred forty-three million, seven hundred eighteen thousand, five hundred fifty".