8351849520 has 320 divisors, whose sum is σ = 33037885440. Its totient is φ = 1899666432.

The previous prime is 8351849509. The next prime is 8351849521. The reversal of 8351849520 is 259481538.

8351849520 is a `hidden beast` number, since 83 + 5 + 1 + 8 + 49 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (8351849521) 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 63 ways as a sum of consecutive naturals, for example, 3370522 + ... + 3372998.

It is an arithmetic number, because the mean of its divisors is an integer number (103243392).

Almost surely, 2^8351849520 is an apocalyptic number.

8351849520 is a gapful number since it is divisible by the number (80) 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 8351849520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16518942720).

8351849520 is an abundant number, since it is smaller than the sum of its proper divisors (24686035920).

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

8351849520 is a wasteful number, since it uses less digits than its factorization.

8351849520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729 (or 2717 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 8351849520 is about 91388.4539753245. The cubic root of 8351849520 is about 2028.9011435803.

The spelling of 8351849520 in words is "eight billion, three hundred fifty-one million, eight hundred forty-nine thousand, five hundred twenty".