11858975659 has 4 divisors (see below), whose sum is σ = 11871240304. Its totient is φ = 11846711016.

The previous prime is 11858975641. The next prime is 11858975683. The reversal of 11858975659 is 95657985811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95657985811 = 449 ⋅213046739.

It is a cyclic number.

It is not a de Polignac number, because 11858975659 - 2⁹ = 11858975147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11858975659.

It is not an unprimeable number, because it can be changed into a prime (11858975629) 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 3 ways as a sum of consecutive naturals, for example, 6130872 + ... + 6132805.

It is an arithmetic number, because the mean of its divisors is an integer number (2967810076).

Almost surely, 2^11858975659 is an apocalyptic number.

11858975659 is a deficient number, since it is larger than the sum of its proper divisors (12264645).

11858975659 is an equidigital number, since it uses as much as digits as its factorization.

11858975659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12264644.

The product of its digits is 27216000, while the sum is 64.

The spelling of 11858975659 in words is "eleven billion, eight hundred fifty-eight million, nine hundred seventy-five thousand, six hundred fifty-nine".