1287173479359 has 16 divisors (see below), whose sum is σ = 1718232190560. Its totient is φ = 857115402240.

The previous prime is 1287173479313. The next prime is 1287173479363. The reversal of 1287173479359 is 9539743717821.

It is not a de Polignac number, because 1287173479359 - 2⁸ = 1287173479103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1287173479359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287173479399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38649987 + ... + 38683275.

It is an arithmetic number, because the mean of its divisors is an integer number (107389511910).

Almost surely, 2^{1287173479359} is an apocalyptic number.

1287173479359 is a deficient number, since it is larger than the sum of its proper divisors (431058711201).

1287173479359 is a wasteful number, since it uses less digits than its factorization.

1287173479359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47930.

The product of its digits is 80015040, while the sum is 66.

The spelling of 1287173479359 in words is "one trillion, two hundred eighty-seven billion, one hundred seventy-three million, four hundred seventy-nine thousand, three hundred fifty-nine".