10864855512 has 128 divisors (see below), whose sum is σ = 34521369600. Its totient is φ = 3101566464.

The previous prime is 10864855493. The next prime is 10864855513. The reversal of 10864855512 is 21555846801.

10864855512 is a `hidden beast` number, since 1 + 0 + 86 + 4 + 8 + 55 + 512 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10864855513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2330688 + ... + 2335344.

It is an arithmetic number, because the mean of its divisors is an integer number (269698200).

Almost surely, 2^10864855512 is an apocalyptic number.

10864855512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10864855512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17260684800).

10864855512 is an abundant number, since it is smaller than the sum of its proper divisors (23656514088).

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

10864855512 is a wasteful number, since it uses less digits than its factorization.

10864855512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6222 (or 6212 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The spelling of 10864855512 in words is "ten billion, eight hundred sixty-four million, eight hundred fifty-five thousand, five hundred twelve".