12270684078 has 48 divisors (see below), whose sum is σ = 27270116016. Its totient is φ = 3985511040.

The previous prime is 12270684077. The next prime is 12270684103. The reversal of 12270684078 is 87048607221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12270684077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307026 + ... + 344682.

It is an arithmetic number, because the mean of its divisors is an integer number (568127417).

Almost surely, 2^12270684078 is an apocalyptic number.

12270684078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12270684078 is an abundant number, since it is smaller than the sum of its proper divisors (14999431938).

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

12270684078 is a wasteful number, since it uses less digits than its factorization.

12270684078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38129 (or 38126 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 12270684078 in words is "twelve billion, two hundred seventy million, six hundred eighty-four thousand, seventy-eight".