11387868210 has 48 divisors (see below), whose sum is σ = 30025494720. Its totient is φ = 2993991840.

The previous prime is 11387868187. The next prime is 11387868223. The reversal of 11387868210 is 1286878311.

It is a happy number.

11387868210 is digitally balanced in base 5, 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 (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 884680 + ... + 897459.

It is an arithmetic number, because the mean of its divisors is an integer number (625531140).

Almost surely, 2^11387868210 is an apocalyptic number.

11387868210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11387868210 is an abundant number, since it is smaller than the sum of its proper divisors (18637626510).

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

11387868210 is a wasteful number, since it uses less digits than its factorization.

11387868210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782223 (or 1782220 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 11387868210 in words is "eleven billion, three hundred eighty-seven million, eight hundred sixty-eight thousand, two hundred ten".