10878689509812 has 144 divisors (see below), whose sum is σ = 28242728113600. Its totient is φ = 3529558126080.

The previous prime is 10878689509811. The next prime is 10878689509871. The reversal of 10878689509812 is 21890598687801.

10878689509812 is a `hidden beast` number, since 108 + 7 + 8 + 6 + 8 + 9 + 509 + 8 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10878689509811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93651864 + ... + 93767952.

Almost surely, 2^{10878689509812} is an apocalyptic number.

10878689509812 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 10878689509812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14121364056800).

10878689509812 is an abundant number, since it is smaller than the sum of its proper divisors (17364038603788).

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

10878689509812 is a wasteful number, since it uses less digits than its factorization.

10878689509812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116606 (or 116601 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 72.

The spelling of 10878689509812 in words is "ten trillion, eight hundred seventy-eight billion, six hundred eighty-nine million, five hundred nine thousand, eight hundred twelve".