12270054978 has 24 divisors (see below), whose sum is σ = 26596537968. Its totient is φ = 4088261592.

The previous prime is 12270054967. The next prime is 12270054989. The reversal of 12270054978 is 87945007221.

It is a happy number.

12270054978 is a `hidden beast` number, since 12 + 27 + 0 + 0 + 549 + 78 = 666.

12270054978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12270054967) and next prime (12270054989).

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 11 ways as a sum of consecutive naturals, for example, 102976 + ... + 187467.

It is an arithmetic number, because the mean of its divisors is an integer number (1108189082).

Almost surely, 2^12270054978 is an apocalyptic number.

12270054978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12270054978 is an abundant number, since it is smaller than the sum of its proper divisors (14326482990).

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

12270054978 is a wasteful number, since it uses less digits than its factorization.

12270054978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292798 (or 292795 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 12270054978 in words is "twelve billion, two hundred seventy million, fifty-four thousand, nine hundred seventy-eight".