11759780585 has 32 divisors (see below), whose sum is σ = 16459822080. Its totient is φ = 7898770368.

The previous prime is 11759780569. The next prime is 11759780603. The reversal of 11759780585 is 58508795711.

It is a cyclic number.

It is not a de Polignac number, because 11759780585 - 2⁴ = 11759780569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11759780585.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574334 + ... + 594456.

It is an arithmetic number, because the mean of its divisors is an integer number (514369440).

Almost surely, 2^11759780585 is an apocalyptic number.

It is an amenable number.

11759780585 is a deficient number, since it is larger than the sum of its proper divisors (4700041495).

11759780585 is a wasteful number, since it uses less digits than its factorization.

11759780585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20477.

The product of its (nonzero) digits is 3528000, while the sum is 56.

The spelling of 11759780585 in words is "eleven billion, seven hundred fifty-nine million, seven hundred eighty thousand, five hundred eighty-five".