9875042569 has 12 divisors (see below), whose sum is σ = 12163018644. Its totient is φ = 7966420224.

The previous prime is 9875042531. The next prime is 9875042587. The reversal of 9875042569 is 9652405789.

It can be written as a sum of positive squares in 2 ways, for example, as 6754702969 + 3120339600 = 82187^2 + 55860^2 .

It is not a de Polignac number, because 9875042569 - 2¹¹ = 9875040521 is a prime.

It is a super-2 number, since 2×9875042569² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9875042069) 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 11 ways as a sum of consecutive naturals, for example, 5926564 + ... + 5928229.

It is an arithmetic number, because the mean of its divisors is an integer number (1013584887).

Almost surely, 2^9875042569 is an apocalyptic number.

It is an amenable number.

9875042569 is a deficient number, since it is larger than the sum of its proper divisors (2287976075).

9875042569 is a wasteful number, since it uses less digits than its factorization.

9875042569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11854824 (or 11854817 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The square root of 9875042569 is about 99373.2487594121. The cubic root of 9875042569 is about 2145.4232963236.

The spelling of 9875042569 in words is "nine billion, eight hundred seventy-five million, forty-two thousand, five hundred sixty-nine".