8163463621172 has 6 divisors (see below), whose sum is σ = 14286061337058. Its totient is φ = 4081731810584.

The previous prime is 8163463621171. The next prime is 8163463621231. The reversal of 8163463621172 is 2711263643618.

It can be written as a sum of positive squares in only one way, i.e., 4609763585296 + 3553700035876 = 2147036^2 + 1885126^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8163463621172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8163463621171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020432952643 + ... + 1020432952650.

It is an arithmetic number, because the mean of its divisors is an integer number (2381010222843).

Almost surely, 2^{8163463621172} is an apocalyptic number.

It is an amenable number.

8163463621172 is a deficient number, since it is larger than the sum of its proper divisors (6122597715886).

8163463621172 is a wasteful number, since it uses less digits than its factorization.

8163463621172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040865905297 (or 2040865905295 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 50.

The spelling of 8163463621172 in words is "eight trillion, one hundred sixty-three billion, four hundred sixty-three million, six hundred twenty-one thousand, one hundred seventy-two".