11987107659 has 12 divisors (see below), whose sum is σ = 17325309456. Its totient is φ = 7986513552.

The previous prime is 11987107633. The next prime is 11987107681. The reversal of 11987107659 is 95670178911.

It is not a de Polignac number, because 11987107659 - 2²¹ = 11985010507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11987107259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392079 + ... + 421544.

It is an arithmetic number, because the mean of its divisors is an integer number (1443775788).

Almost surely, 2^11987107659 is an apocalyptic number.

11987107659 is a deficient number, since it is larger than the sum of its proper divisors (5338201797).

11987107659 is a wasteful number, since it uses less digits than its factorization.

11987107659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815266 (or 815263 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 54.

The spelling of 11987107659 in words is "eleven billion, nine hundred eighty-seven million, one hundred seven thousand, six hundred fifty-nine".