8201789672 has 32 divisors (see below), whose sum is σ = 16289699400. Its totient is φ = 3858069504.

The previous prime is 8201789639. The next prime is 8201789681. The reversal of 8201789672 is 2769871028.

It can be written as a sum of positive squares in 4 ways, for example, as 8194956676 + 6832996 = 90526^2 + 2614^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8201789672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357854 + ... + 380082.

Almost surely, 2^8201789672 is an apocalyptic number.

It is an amenable number.

8201789672 is a deficient number, since it is larger than the sum of its proper divisors (8087909728).

8201789672 is a wasteful number, since it uses less digits than its factorization.

8201789672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24965 (or 24961 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 8201789672 is about 90563.7326527568. The cubic root of 8201789672 is about 2016.6763688838.

The spelling of 8201789672 in words is "eight billion, two hundred one million, seven hundred eighty-nine thousand, six hundred seventy-two".