12723795380 has 12 divisors (see below), whose sum is σ = 26719970340. Its totient is φ = 5089518144.

The previous prime is 12723795373. The next prime is 12723795389. The reversal of 12723795380 is 8359732721.

It can be written as a sum of positive squares in 2 ways, for example, as 5699344036 + 7024451344 = 75494^2 + 83812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12723795389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318094865 + ... + 318094904.

It is an arithmetic number, because the mean of its divisors is an integer number (2226664195).

Almost surely, 2^12723795380 is an apocalyptic number.

12723795380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12723795380 is an abundant number, since it is smaller than the sum of its proper divisors (13996174960).

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

12723795380 is a wasteful number, since it uses less digits than its factorization.

12723795380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636189778 (or 636189776 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 12723795380 in words is "twelve billion, seven hundred twenty-three million, seven hundred ninety-five thousand, three hundred eighty".