12808488746 has 4 divisors (see below), whose sum is σ = 19212733122. Its totient is φ = 6404244372.

The previous prime is 12808488743. The next prime is 12808488787. The reversal of 12808488746 is 64788480821.

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., 9472155625 + 3336333121 = 97325^2 + 57761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12808488691 and 12808488700.

It is not an unprimeable number, because it can be changed into a prime (12808488743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202122185 + ... + 3202122188.

Almost surely, 2^12808488746 is an apocalyptic number.

12808488746 is a deficient number, since it is larger than the sum of its proper divisors (6404244376).

12808488746 is an equidigital number, since it uses as much as digits as its factorization.

12808488746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404244375.

The product of its (nonzero) digits is 5505024, while the sum is 56.

The spelling of 12808488746 in words is "twelve billion, eight hundred eight million, four hundred eighty-eight thousand, seven hundred forty-six".