1287017312888 has 16 divisors (see below), whose sum is σ = 2472014961360. Its totient is φ = 627813323200.

The previous prime is 1287017312873. The next prime is 1287017312939. The reversal of 1287017312888 is 8882137107821.

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, 1961916308 + ... + 1961916963.

It is an arithmetic number, because the mean of its divisors is an integer number (154500935085).

Almost surely, 2^{1287017312888} is an apocalyptic number.

It is an amenable number.

1287017312888 is a deficient number, since it is larger than the sum of its proper divisors (1184997648472).

1287017312888 is a wasteful number, since it uses less digits than its factorization.

1287017312888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923833318 (or 3923833314 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 56.

The spelling of 1287017312888 in words is "one trillion, two hundred eighty-seven billion, seventeen million, three hundred twelve thousand, eight hundred eighty-eight".