8209769472 has 176 divisors, whose sum is σ = 25745037120. Its totient is φ = 2575466496.

The previous prime is 8209769467. The next prime is 8209769479. The reversal of 8209769472 is 2749679028.

8209769472 is a `hidden beast` number, since 8 + 20 + 97 + 69 + 472 = 666.

8209769472 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8209769479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461283 + ... + 478749.

It is an arithmetic number, because the mean of its divisors is an integer number (146278620).

Almost surely, 2^8209769472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8209769472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12872518560).

8209769472 is an abundant number, since it is smaller than the sum of its proper divisors (17535267648).

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

8209769472 is a wasteful number, since it uses less digits than its factorization.

8209769472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17513 (or 17489 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 8209769472 is about 90607.7782091582. The cubic root of 8209769472 is about 2017.3301878881.

The spelling of 8209769472 in words is "eight billion, two hundred nine million, seven hundred sixty-nine thousand, four hundred seventy-two".