8189911585972 has 24 divisors (see below), whose sum is σ = 14337220567040. Its totient is φ = 4093563104640.

The previous prime is 8189911585949. The next prime is 8189911585987. The reversal of 8189911585972 is 2795851199818.

It is a junction number, because it is equal to n+sod(n) for n = 8189911585895 and 8189911585904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164131147 + ... + 164181037.

Almost surely, 2^{8189911585972} is an apocalyptic number.

It is an amenable number.

8189911585972 is a deficient number, since it is larger than the sum of its proper divisors (6147308981068).

8189911585972 is a wasteful number, since it uses less digits than its factorization.

8189911585972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63031 (or 63029 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 73.

The spelling of 8189911585972 in words is "eight trillion, one hundred eighty-nine billion, nine hundred eleven million, five hundred eighty-five thousand, nine hundred seventy-two".