12800000000002 has 16 divisors (see below), whose sum is σ = 19720210407480. Its totient is φ = 6226619188608.

The previous prime is 12799999999949. The next prime is 12800000000003. The reversal of 12800000000002 is 20000000000821.

It can be written as a sum of positive squares in 4 ways, for example, as 12605844321841 + 194155678161 = 3550471^2 + 440631^2 .

It is not an unprimeable number, because it can be changed into a prime (12800000000003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4525393 + ... + 6788164.

Almost surely, 2^{12800000000002} is an apocalyptic number.

12800000000002 is a deficient number, since it is larger than the sum of its proper divisors (6920210407478).

12800000000002 is a wasteful number, since it uses less digits than its factorization.

12800000000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328885.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12800000000002 its reverse (20000000000821), we get a palindrome (32800000000823).

It can be divided in two parts, 1280000000000 and 2, that multiplied together give a square (2560000000000 = 1600000²).

The spelling of 12800000000002 in words is "twelve trillion, eight hundred billion, two", and thus it is an aban number.