12643053362 has 4 divisors (see below), whose sum is σ = 18964580046. Its totient is φ = 6321526680.

The previous prime is 12643053341. The next prime is 12643053377. The reversal of 12643053362 is 26335034621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10966068961 + 1676984401 = 104719^2 + 40951^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160763339 + ... + 3160763342.

Almost surely, 2^12643053362 is an apocalyptic number.

12643053362 is a deficient number, since it is larger than the sum of its proper divisors (6321526684).

12643053362 is an equidigital number, since it uses as much as digits as its factorization.

12643053362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321526683.

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 12643053362 its reverse (26335034621), we get a palindrome (38978087983).

The spelling of 12643053362 in words is "twelve billion, six hundred forty-three million, fifty-three thousand, three hundred sixty-two".