9210971485 has 4 divisors (see below), whose sum is σ = 11053165788. Its totient is φ = 7368777184.

The previous prime is 9210971479. The next prime is 9210971489. The reversal of 9210971485 is 5841790129.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1120508676 + 8090462809 = 33474^2 + 89947^2 .

It is a cyclic number.

It is not a de Polignac number, because 9210971485 - 2⁵ = 9210971453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9210971489) 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 3 ways as a sum of consecutive naturals, for example, 921097144 + ... + 921097153.

It is an arithmetic number, because the mean of its divisors is an integer number (2763291447).

Almost surely, 2^9210971485 is an apocalyptic number.

It is an amenable number.

9210971485 is a deficient number, since it is larger than the sum of its proper divisors (1842194303).

9210971485 is a wasteful number, since it uses less digits than its factorization.

9210971485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842194302.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 9210971485 is about 95973.8062442039. The cubic root of 9210971485 is about 2096.2117254660.

The spelling of 9210971485 in words is "nine billion, two hundred ten million, nine hundred seventy-one thousand, four hundred eighty-five".