8419772168 has 16 divisors (see below), whose sum is σ = 15788623680. Its totient is φ = 4209472528.

The previous prime is 8419772161. The next prime is 8419772191. The reversal of 8419772168 is 8612779148.

It is a happy number.

It is a super-2 number, since 2×8419772168² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8419772161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45605 + ... + 137547.

It is an arithmetic number, because the mean of its divisors is an integer number (986788980).

Almost surely, 2^8419772168 is an apocalyptic number.

It is an amenable number.

8419772168 is a deficient number, since it is larger than the sum of its proper divisors (7368851512).

8419772168 is a wasteful number, since it uses less digits than its factorization.

8419772168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103396 (or 103392 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 53.

The square root of 8419772168 is about 91759.3165188146. The cubic root of 8419772168 is about 2034.3864130192.

The spelling of 8419772168 in words is "eight billion, four hundred nineteen million, seven hundred seventy-two thousand, one hundred sixty-eight".