1280086717488 has 80 divisors (see below), whose sum is σ = 3347248012416. Its totient is φ = 421489761280.

The previous prime is 1280086717453. The next prime is 1280086717493. The reversal of 1280086717488 is 8847176800821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30620056 + ... + 30661832.

Almost surely, 2^{1280086717488} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1280086717488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1673624006208).

1280086717488 is an abundant number, since it is smaller than the sum of its proper divisors (2067161294928).

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

1280086717488 is a wasteful number, since it uses less digits than its factorization.

1280086717488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49562 (or 49556 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 60.

The spelling of 1280086717488 in words is "one trillion, two hundred eighty billion, eighty-six million, seven hundred seventeen thousand, four hundred eighty-eight".