12087880178 has 8 divisors (see below), whose sum is σ = 19780167600. Its totient is φ = 5494490980.

The previous prime is 12087880177. The next prime is 12087880219. The reversal of 12087880178 is 87108878021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12087880178² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12087880177) 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 3 ways as a sum of consecutive naturals, for example, 274724528 + ... + 274724571.

It is an arithmetic number, because the mean of its divisors is an integer number (2472520950).

Almost surely, 2^12087880178 is an apocalyptic number.

12087880178 is a deficient number, since it is larger than the sum of its proper divisors (7692287422).

12087880178 is a wasteful number, since it uses less digits than its factorization.

12087880178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549449112.

The product of its (nonzero) digits is 401408, while the sum is 50.

The spelling of 12087880178 in words is "twelve billion, eighty-seven million, eight hundred eighty thousand, one hundred seventy-eight".