12855211489 has 2 divisors, whose sum is σ = 12855211490. Its totient is φ = 12855211488.

The previous prime is 12855211423. The next prime is 12855211511. The reversal of 12855211489 is 98411255821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12806769889 + 48441600 = 113167^2 + 6960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12855211489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12855251489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6427605744 + 6427605745.

It is an arithmetic number, because the mean of its divisors is an integer number (6427605745).

Almost surely, 2^12855211489 is an apocalyptic number.

It is an amenable number.

12855211489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12855211489 is an equidigital number, since it uses as much as digits as its factorization.

12855211489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230400, while the sum is 46.

It can be divided in two parts, 128552 and 11489, that added together give a palindrome (140041).

The spelling of 12855211489 in words is "twelve billion, eight hundred fifty-five million, two hundred eleven thousand, four hundred eighty-nine".