1328652838868 has 12 divisors (see below), whose sum is σ = 2325201744180. Its totient is φ = 664309483392.

The previous prime is 1328652838739. The next prime is 1328652838871. The reversal of 1328652838868 is 8688382568231.

It can be written as a sum of positive squares in 2 ways, for example, as 933441957904 + 395210880964 = 966148^2 + 628658^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1328652838798 and 1328652838807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4056671 + ... + 4371942.

It is an arithmetic number, because the mean of its divisors is an integer number (193766812015).

Almost surely, 2^{1328652838868} is an apocalyptic number.

It is an amenable number.

1328652838868 is a deficient number, since it is larger than the sum of its proper divisors (996548905312).

1328652838868 is a wasteful number, since it uses less digits than its factorization.

1328652838868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8468026 (or 8468024 counting only the distinct ones).

The product of its digits is 212336640, while the sum is 68.

The spelling of 1328652838868 in words is "one trillion, three hundred twenty-eight billion, six hundred fifty-two million, eight hundred thirty-eight thousand, eight hundred sixty-eight".