9855836568 has 64 divisors (see below), whose sum is σ = 27394264800. Its totient is φ = 3283246080.

The previous prime is 9855836567. The next prime is 9855836587. The reversal of 9855836568 is 8656385589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9855836563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358480 + ... + 384992.

Almost surely, 2^9855836568 is an apocalyptic number.

It is an amenable number.

9855836568 is an abundant number, since it is smaller than the sum of its proper divisors (17538428232).

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

9855836568 is a wasteful number, since it uses less digits than its factorization.

9855836568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28249 (or 28239 counting only the distinct ones).

The product of its digits is 62208000, while the sum is 63.

The square root of 9855836568 is about 99276.5660566480. The cubic root of 9855836568 is about 2144.0315134922.

The spelling of 9855836568 in words is "nine billion, eight hundred fifty-five million, eight hundred thirty-six thousand, five hundred sixty-eight".