9180705856 has 189 divisors, whose sum is σ = 22326603429. Its totient is φ = 3734524416.

The previous prime is 9180705851. The next prime is 9180705869. The reversal of 9180705856 is 6585070819.

The square root of 9180705856 is 95816.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4814139456 + 4366566400 = 69384^2 + 66080^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9180705851) 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 26 ways as a sum of consecutive naturals, for example, 155605155 + ... + 155605213.

Almost surely, 2^9180705856 is an apocalyptic number.

9180705856 is the 95816-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9180705856

9180705856 is an abundant number, since it is smaller than the sum of its proper divisors (13145897573).

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

9180705856 is an equidigital number, since it uses as much as digits as its factorization.

9180705856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 49.

The cubic root of 9180705856 is about 2093.9132787601.

Multiplying 9180705856 by its sum of digits (49), we get a square (449854586944 = 670712²).

9180705856 divided by its sum of digits (49) gives a square (187361344 = 13688²).

The spelling of 9180705856 in words is "nine billion, one hundred eighty million, seven hundred five thousand, eight hundred fifty-six".