11287818870 has 64 divisors (see below), whose sum is σ = 28721952000. Its totient is φ = 2831124096.

The previous prime is 11287818869. The next prime is 11287818907. The reversal of 11287818870 is 7881878211.

11287818870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 7996 + ... + 150464.

It is an arithmetic number, because the mean of its divisors is an integer number (448780500).

Almost surely, 2^11287818870 is an apocalyptic number.

11287818870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11287818870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14360976000).

11287818870 is an abundant number, since it is smaller than the sum of its proper divisors (17434133130).

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

11287818870 is a wasteful number, since it uses less digits than its factorization.

11287818870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142637.

The product of its (nonzero) digits is 401408, while the sum is 51.

The spelling of 11287818870 in words is "eleven billion, two hundred eighty-seven million, eight hundred eighteen thousand, eight hundred seventy".