1288860000173 has 8 divisors (see below), whose sum is σ = 1289462895000. Its totient is φ = 1288257203008.

The previous prime is 1288860000151. The next prime is 1288860000187. The reversal of 1288860000173 is 3710000688821.

It can be written as a sum of positive squares in 4 ways, for example, as 21664012969 + 1267195987204 = 147187^2 + 1125698^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1288860000173 - 2⁴⁰ = 189348372397 is a prime.

It is a super-2 number, since 2×1288860000173² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288860002173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42396863 + ... + 42427251.

It is an arithmetic number, because the mean of its divisors is an integer number (161182861875).

Almost surely, 2^{1288860000173} is an apocalyptic number.

It is an amenable number.

1288860000173 is a deficient number, since it is larger than the sum of its proper divisors (602894827).

1288860000173 is a wasteful number, since it uses less digits than its factorization.

1288860000173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48831.

The product of its (nonzero) digits is 129024, while the sum is 44.

Adding to 1288860000173 its reverse (3710000688821), we get a palindrome (4998860688994).

The spelling of 1288860000173 in words is "one trillion, two hundred eighty-eight billion, eight hundred sixty million, one hundred seventy-three", and thus it is an aban number.