8409608892 has 144 divisors (see below), whose sum is σ = 23912939232. Its totient is φ = 2573752320.

The previous prime is 8409608881. The next prime is 8409608897. The reversal of 8409608892 is 2988069048.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8409608897) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 671278 + ... + 683690.

It is an arithmetic number, because the mean of its divisors is an integer number (166062078).

Almost surely, 2^8409608892 is an apocalyptic number.

8409608892 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8409608892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11956469616).

8409608892 is an abundant number, since it is smaller than the sum of its proper divisors (15503330340).

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

8409608892 is a wasteful number, since it uses less digits than its factorization.

8409608892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12490 (or 12476 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 8409608892 is about 91703.9197199335. The cubic root of 8409608892 is about 2033.5675327718.

The spelling of 8409608892 in words is "eight billion, four hundred nine million, six hundred eight thousand, eight hundred ninety-two".