1280700288880 has 40 divisors (see below), whose sum is σ = 3007109657664. Its totient is φ = 507208032000.

The previous prime is 1280700288809. The next prime is 1280700288893. The reversal of 1280700288880 is 888820070821.

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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79243176 + ... + 79259335.

Almost surely, 2^{1280700288880} is an apocalyptic number.

1280700288880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1280700288880 is an abundant number, since it is smaller than the sum of its proper divisors (1726409368784).

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

1280700288880 is a wasteful number, since it uses less digits than its factorization.

1280700288880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158502625 (or 158502619 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 52.

The spelling of 1280700288880 in words is "one trillion, two hundred eighty billion, seven hundred million, two hundred eighty-eight thousand, eight hundred eighty".