12181627870 has 16 divisors (see below), whose sum is σ = 21928339440. Its totient is φ = 4872337984.

The previous prime is 12181627841. The next prime is 12181627879. The reversal of 12181627870 is 7872618121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12181627879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185754 + ... + 242626.

It is an arithmetic number, because the mean of its divisors is an integer number (1370521215).

Almost surely, 2^12181627870 is an apocalyptic number.

12181627870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12181627870 is a deficient number, since it is larger than the sum of its proper divisors (9746711570).

12181627870 is a wasteful number, since it uses less digits than its factorization.

12181627870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78299.

The product of its (nonzero) digits is 75264, while the sum is 43.

The spelling of 12181627870 in words is "twelve billion, one hundred eighty-one million, six hundred twenty-seven thousand, eight hundred seventy".