12981523255 has 8 divisors (see below), whose sum is σ = 16494170832. Its totient is φ = 9774323328.

The previous prime is 12981523231. The next prime is 12981523259. The reversal of 12981523255 is 55232518921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12981523255 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12981523259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76361817 + ... + 76361986.

It is an arithmetic number, because the mean of its divisors is an integer number (2061771354).

Almost surely, 2^12981523255 is an apocalyptic number.

12981523255 is a deficient number, since it is larger than the sum of its proper divisors (3512647577).

12981523255 is a wasteful number, since it uses less digits than its factorization.

12981523255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152723825.

The product of its digits is 216000, while the sum is 43.

The spelling of 12981523255 in words is "twelve billion, nine hundred eighty-one million, five hundred twenty-three thousand, two hundred fifty-five".