11886978600 has 432 divisors, whose sum is σ = 46695448800. Its totient is φ = 2702004480.

The previous prime is 11886978563. The next prime is 11886978619. The reversal of 11886978600 is 687968811.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 27077181 + ... + 27077619.

Almost surely, 2^11886978600 is an apocalyptic number.

11886978600 is a gapful number since it is divisible by the number (10) 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 11886978600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23347724400).

11886978600 is an abundant number, since it is smaller than the sum of its proper divisors (34808470200).

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

11886978600 is a wasteful number, since it uses less digits than its factorization.

11886978600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 11886978600 in words is "eleven billion, eight hundred eighty-six million, nine hundred seventy-eight thousand, six hundred".