9860993778 has 16 divisors (see below), whose sum is σ = 19726430976. Its totient is φ = 3286257360.

The previous prime is 9860993777. The next prime is 9860993833. The reversal of 9860993778 is 8773990689.

9860993778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9860993771) 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 7 ways as a sum of consecutive naturals, for example, 155938 + ... + 209853.

It is an arithmetic number, because the mean of its divisors is an integer number (1232901936).

Almost surely, 2^9860993778 is an apocalyptic number.

9860993778 is an abundant number, since it is smaller than the sum of its proper divisors (9865437198).

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

9860993778 is a wasteful number, since it uses less digits than its factorization.

9860993778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370289.

The product of its (nonzero) digits is 41150592, while the sum is 66.

The square root of 9860993778 is about 99302.5366141268. The cubic root of 9860993778 is about 2144.4054135202.

The spelling of 9860993778 in words is "nine billion, eight hundred sixty million, nine hundred ninety-three thousand, seven hundred seventy-eight".