9489145705 has 32 divisors (see below), whose sum is σ = 12527252640. Its totient is φ = 6857011200.

The previous prime is 9489145703. The next prime is 9489145717. The reversal of 9489145705 is 5075419849.

It can be written as a sum of positive squares in 16 ways, for example, as 2464526736 + 7024618969 = 49644^2 + 83813^2 .

It is not a de Polignac number, because 9489145705 - 2¹ = 9489145703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9489145703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1378011 + ... + 1384879.

It is an arithmetic number, because the mean of its divisors is an integer number (391476645).

Almost surely, 2^9489145705 is an apocalyptic number.

It is an amenable number.

9489145705 is a deficient number, since it is larger than the sum of its proper divisors (3038106935).

9489145705 is a wasteful number, since it uses less digits than its factorization.

9489145705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The square root of 9489145705 is about 97412.2461757247. The cubic root of 9489145705 is about 2117.1048728243.

The spelling of 9489145705 in words is "nine billion, four hundred eighty-nine million, one hundred forty-five thousand, seven hundred five".