1359309687885 has 60 divisors (see below), whose sum is σ = 2580206725404. Its totient is φ = 682271596800.

The previous prime is 1359309687881. The next prime is 1359309687893. The reversal of 1359309687885 is 5887869039531.

1359309687885 is a `hidden beast` number, since 1 + 359 + 30 + 96 + 87 + 8 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 783602055369 + 575707632516 = 885213^2 + 758754^2 .

It is not a de Polignac number, because 1359309687885 - 2² = 1359309687881 is a prime.

It is a super-2 number, since 2×1359309687885² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1359309687881) 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 59 ways as a sum of consecutive naturals, for example, 96734110 + ... + 96748160.

Almost surely, 2^{1359309687885} is an apocalyptic number.

1359309687885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1359309687885 is a deficient number, since it is larger than the sum of its proper divisors (1220897037519).

1359309687885 is an frugal number, since it uses more digits than its factorization.

1359309687885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28136 (or 14076 counting only the distinct ones).

The product of its (nonzero) digits is 391910400, while the sum is 72.

The spelling of 1359309687885 in words is "one trillion, three hundred fifty-nine billion, three hundred nine million, six hundred eighty-seven thousand, eight hundred eighty-five".