12278935455 has 16 divisors (see below), whose sum is σ = 19690063200. Its totient is φ = 6534176768.

The previous prime is 12278935451. The next prime is 12278935469. The reversal of 12278935455 is 55453987221.

It is a cyclic number.

It is not a de Polignac number, because 12278935455 - 2² = 12278935451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12278935398 and 12278935407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12278935451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904842 + ... + 918311.

It is an arithmetic number, because the mean of its divisors is an integer number (1230628950).

Almost surely, 2^12278935455 is an apocalyptic number.

12278935455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12278935455 is a deficient number, since it is larger than the sum of its proper divisors (7411127745).

12278935455 is a wasteful number, since it uses less digits than its factorization.

12278935455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823610.

The product of its digits is 3024000, while the sum is 51.

The spelling of 12278935455 in words is "twelve billion, two hundred seventy-eight million, nine hundred thirty-five thousand, four hundred fifty-five".