11687537397185 has 8 divisors (see below), whose sum is σ = 15103894482600. Its totient is φ = 8630796847104.

The previous prime is 11687537397163. The next prime is 11687537397191. The reversal of 11687537397185 is 58179373578611.

It can be written as a sum of positive squares in 4 ways, for example, as 14115340864 + 11673422056321 = 118808^2 + 3416639^2 .

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 11687537397185 - 2²² = 11687533202881 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89904133760 + ... + 89904133889.

It is an arithmetic number, because the mean of its divisors is an integer number (1887986810325).

Almost surely, 2^{11687537397185} is an apocalyptic number.

It is an amenable number.

11687537397185 is a deficient number, since it is larger than the sum of its proper divisors (3416357085415).

11687537397185 is a wasteful number, since it uses less digits than its factorization.

11687537397185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179808267667.

The product of its digits is 266716800, while the sum is 71.

The spelling of 11687537397185 in words is "eleven trillion, six hundred eighty-seven billion, five hundred thirty-seven million, three hundred ninety-seven thousand, one hundred eighty-five".