9678870890 has 32 divisors (see below), whose sum is σ = 18840031056. Its totient is φ = 3558896640.

The previous prime is 9678870857. The next prime is 9678870893. The reversal of 9678870890 is 980788769.

9678870890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1416242689 + 8262628201 = 37633^2 + 90899^2 .

It is not an unprimeable number, because it can be changed into a prime (9678870893) 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 15 ways as a sum of consecutive naturals, for example, 123137 + ... + 185796.

Almost surely, 2^9678870890 is an apocalyptic number.

9678870890 is a deficient number, since it is larger than the sum of its proper divisors (9161160166).

9678870890 is a wasteful number, since it uses less digits than its factorization.

9678870890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309194.

The product of its (nonzero) digits is 12192768, while the sum is 62.

The square root of 9678870890 is about 98381.2527364843. The cubic root of 9678870890 is about 2131.1216065273.

The spelling of 9678870890 in words is "nine billion, six hundred seventy-eight million, eight hundred seventy thousand, eight hundred ninety".