12781230255 has 24 divisors (see below), whose sum is σ = 22166106768. Its totient is φ = 6812971776.

The previous prime is 12781230227. The next prime is 12781230299. The reversal of 12781230255 is 55203218721.

It is not a de Polignac number, because 12781230255 - 2⁷ = 12781230127 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8464 + ... + 160106.

It is an arithmetic number, because the mean of its divisors is an integer number (923587782).

Almost surely, 2^12781230255 is an apocalyptic number.

12781230255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12781230255 is a deficient number, since it is larger than the sum of its proper divisors (9384876513).

12781230255 is a wasteful number, since it uses less digits than its factorization.

12781230255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153527 (or 153524 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

Adding to 12781230255 its reverse (55203218721), we get a palindrome (67984448976).

The spelling of 12781230255 in words is "twelve billion, seven hundred eighty-one million, two hundred thirty thousand, two hundred fifty-five".