11800659887 has 8 divisors (see below), whose sum is σ = 12428816256. Its totient is φ = 11182093912.

The previous prime is 11800659881. The next prime is 11800659889. The reversal of 11800659887 is 78895600811.

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 11800659887 - 2³² = 7505692591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11800659881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2395073 + ... + 2399994.

It is an arithmetic number, because the mean of its divisors is an integer number (1553602032).

Almost surely, 2^11800659887 is an apocalyptic number.

11800659887 is a deficient number, since it is larger than the sum of its proper divisors (628156369).

11800659887 is a wasteful number, since it uses less digits than its factorization.

11800659887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795197.

The product of its (nonzero) digits is 967680, while the sum is 53.

The spelling of 11800659887 in words is "eleven billion, eight hundred million, six hundred fifty-nine thousand, eight hundred eighty-seven".