11487287280 has 160 divisors (see below), whose sum is σ = 40730393088. Its totient is φ = 2623564800.

The previous prime is 11487287269. The next prime is 11487287303. The reversal of 11487287280 is 8278278411.

11487287280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3242310 + ... + 3245850.

Almost surely, 2^11487287280 is an apocalyptic number.

11487287280 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 11487287280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20365196544).

11487287280 is an abundant number, since it is smaller than the sum of its proper divisors (29243105808).

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

11487287280 is a wasteful number, since it uses less digits than its factorization.

11487287280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 48.

The spelling of 11487287280 in words is "eleven billion, four hundred eighty-seven million, two hundred eighty-seven thousand, two hundred eighty".