1289987889283 has 16 divisors (see below), whose sum is σ = 1309206780000. Its totient is φ = 1270880658432.

The previous prime is 1289987889259. The next prime is 1289987889317. The reversal of 1289987889283 is 3829887899821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1289987889283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1289987889197 and 1289987889206.

It is not an unprimeable number, because it can be changed into a prime (1289987889233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35365591 + ... + 35402047.

It is an arithmetic number, because the mean of its divisors is an integer number (81825423750).

Almost surely, 2^{1289987889283} is an apocalyptic number.

1289987889283 is a deficient number, since it is larger than the sum of its proper divisors (19218890717).

1289987889283 is a wasteful number, since it uses less digits than its factorization.

1289987889283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37974.

The product of its digits is 2006581248, while the sum is 82.

The spelling of 1289987889283 in words is "one trillion, two hundred eighty-nine billion, nine hundred eighty-seven million, eight hundred eighty-nine thousand, two hundred eighty-three".