12855964853 has 2 divisors, whose sum is σ = 12855964854. Its totient is φ = 12855964852.

The previous prime is 12855964801. The next prime is 12855964867. The reversal of 12855964853 is 35846955821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10095828484 + 2760136369 = 100478^2 + 52537^2 .

It is a cyclic number.

It is not a de Polignac number, because 12855964853 - 2⁶ = 12855964789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12855964873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6427982426 + 6427982427.

It is an arithmetic number, because the mean of its divisors is an integer number (6427982427).

Almost surely, 2^12855964853 is an apocalyptic number.

It is an amenable number.

12855964853 is a deficient number, since it is larger than the sum of its proper divisors (1).

12855964853 is an equidigital number, since it uses as much as digits as its factorization.

12855964853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368000, while the sum is 56.

The spelling of 12855964853 in words is "twelve billion, eight hundred fifty-five million, nine hundred sixty-four thousand, eight hundred fifty-three".