8434219518 has 12 divisors (see below), whose sum is σ = 18274142328. Its totient is φ = 2811406500.

The previous prime is 8434219517. The next prime is 8434219579. The reversal of 8434219518 is 8159124348.

8434219518 is a `hidden beast` number, since 84 + 3 + 42 + 19 + 518 = 666.

It is a super-2 number, since 2×8434219518² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8434219517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 234283858 + ... + 234283893.

It is an arithmetic number, because the mean of its divisors is an integer number (1522845194).

Almost surely, 2^8434219518 is an apocalyptic number.

8434219518 is an abundant number, since it is smaller than the sum of its proper divisors (9839922810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8434219518 is a wasteful number, since it uses less digits than its factorization.

8434219518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468567759 (or 468567756 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 8434219518 is about 91838.0069361264. The cubic root of 8434219518 is about 2035.5493383007.

The spelling of 8434219518 in words is "eight billion, four hundred thirty-four million, two hundred nineteen thousand, five hundred eighteen".