12922853378 has 18 divisors (see below), whose sum is σ = 20037477897. Its totient is φ = 6250582080.

The previous prime is 12922853371. The next prime is 12922853431. The reversal of 12922853378 is 87335822921.

It can be written as a sum of positive squares in 2 ways, for example, as 12781885249 + 140968129 = 113057^2 + 11873^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=80383.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12922853371) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4982450 + ... + 4985042.

Almost surely, 2^12922853378 is an apocalyptic number.

12922853378 is a deficient number, since it is larger than the sum of its proper divisors (7114624519).

12922853378 is an frugal number, since it uses more digits than its factorization.

12922853378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250 (or 2626 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

Multiplying 12922853378 by its sum of digits (50), we get a square (646142668900 = 803830²).

The spelling of 12922853378 in words is "twelve billion, nine hundred twenty-two million, eight hundred fifty-three thousand, three hundred seventy-eight".