1289280848880 has 40 divisors (see below), whose sum is σ = 3996770632272. Its totient is φ = 343808226304.

The previous prime is 1289280848809. The next prime is 1289280848899. The reversal of 1289280848880 is 888480829821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2686001529 + ... + 2686002008.

Almost surely, 2^{1289280848880} is an apocalyptic number.

1289280848880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1289280848880 is an abundant number, since it is smaller than the sum of its proper divisors (2707489783392).

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

1289280848880 is a wasteful number, since it uses less digits than its factorization.

1289280848880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372003553 (or 5372003547 counting only the distinct ones).

The product of its (nonzero) digits is 37748736, while the sum is 66.

The spelling of 1289280848880 in words is "one trillion, two hundred eighty-nine billion, two hundred eighty million, eight hundred forty-eight thousand, eight hundred eighty".