1288517541917 has 2 divisors, whose sum is σ = 1288517541918. Its totient is φ = 1288517541916.

The previous prime is 1288517541911. The next prime is 1288517542063. The reversal of 1288517541917 is 7191457158821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 650298700921 + 638218840996 = 806411^2 + 798886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1288517541917 - 2¹⁶ = 1288517476381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1288517541911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644258770958 + 644258770959.

It is an arithmetic number, because the mean of its divisors is an integer number (644258770959).

Almost surely, 2^{1288517541917} is an apocalyptic number.

It is an amenable number.

1288517541917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288517541917 is an equidigital number, since it uses as much as digits as its factorization.

1288517541917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5644800, while the sum is 59.

The spelling of 1288517541917 in words is "one trillion, two hundred eighty-eight billion, five hundred seventeen million, five hundred forty-one thousand, nine hundred seventeen".