12853816448 has 72 divisors (see below), whose sum is σ = 28177701195. Its totient is φ = 5836230400.

The previous prime is 12853816427. The next prime is 12853816477. The reversal of 12853816448 is 84461835821.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 6426908224 + 6426908224 = 80168^2 + 80168^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=80168.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12853816396 and 12853816405.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14109113 + ... + 14110023.

Almost surely, 2^12853816448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12853816448

12853816448 is an abundant number, since it is smaller than the sum of its proper divisors (15323884747).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12853816448 is an frugal number, since it uses more digits than its factorization.

12853816448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858 (or 924 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 50.

Multiplying 12853816448 by its sum of digits (50), we get a square (642690822400 = 801680²).

The spelling of 12853816448 in words is "twelve billion, eight hundred fifty-three million, eight hundred sixteen thousand, four hundred forty-eight".