1280656832008 has 32 divisors (see below), whose sum is σ = 2604492205560. Its totient is φ = 587962961920.

The previous prime is 1280656831901. The next prime is 1280656832047. The reversal of 1280656832008 is 8002386560821.

It can be written as a sum of positive squares in 4 ways, for example, as 625557610084 + 655099221924 = 790922^2 + 809382^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114830941 + ... + 114842092.

Almost surely, 2^{1280656832008} is an apocalyptic number.

It is an amenable number.

1280656832008 is an abundant number, since it is smaller than the sum of its proper divisors (1323835373552).

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

1280656832008 is a wasteful number, since it uses less digits than its factorization.

1280656832008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229673097 (or 229673093 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 1280656832008 in words is "one trillion, two hundred eighty billion, six hundred fifty-six million, eight hundred thirty-two thousand, eight".