11687260507617 has 16 divisors (see below), whose sum is σ = 15664154708160. Its totient is φ = 7751012280000.

The previous prime is 11687260507603. The next prime is 11687260507619. The reversal of 11687260507617 is 71670506278611.

It is not a de Polignac number, because 11687260507617 - 2¹⁸ = 11687260245473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11687260507619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8834242 + ... + 10070667.

It is an arithmetic number, because the mean of its divisors is an integer number (979009669260).

Almost surely, 2^{11687260507617} is an apocalyptic number.

It is an amenable number.

11687260507617 is a deficient number, since it is larger than the sum of its proper divisors (3976894200543).

11687260507617 is a wasteful number, since it uses less digits than its factorization.

11687260507617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18905984.

The product of its (nonzero) digits is 5927040, while the sum is 57.

The spelling of 11687260507617 in words is "eleven trillion, six hundred eighty-seven billion, two hundred sixty million, five hundred seven thousand, six hundred seventeen".