12854824730981 has 2 divisors, whose sum is σ = 12854824730982. Its totient is φ = 12854824730980.

The previous prime is 12854824730953. The next prime is 12854824730983. The reversal of 12854824730981 is 18903742845821.

12854824730981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12572406886081 + 282417844900 = 3545759^2 + 531430^2 .

It is a cyclic number.

It is not a de Polignac number, because 12854824730981 - 2²⁶ = 12854757622117 is a prime.

It is a super-2 number, since 2×12854824730981² (a number of 27 digits) contains 22 as substring.

Together with 12854824730983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12854824730983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6427412365490 + 6427412365491.

It is an arithmetic number, because the mean of its divisors is an integer number (6427412365491).

Almost surely, 2^{12854824730981} is an apocalyptic number.

It is an amenable number.

12854824730981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12854824730981 is an equidigital number, since it uses as much as digits as its factorization.

12854824730981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30965760, while the sum is 62.

The spelling of 12854824730981 in words is "twelve trillion, eight hundred fifty-four billion, eight hundred twenty-four million, seven hundred thirty thousand, nine hundred eighty-one".