11678515199 has 16 divisors (see below), whose sum is σ = 12815671680. Its totient is φ = 10576764000.

The previous prime is 11678515187. The next prime is 11678515217. The reversal of 11678515199 is 99151587611.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11678515199 - 2⁴ = 11678515183 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 11678515199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11678515099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191912 + ... + 245330.

It is an arithmetic number, because the mean of its divisors is an integer number (800979480).

Almost surely, 2^11678515199 is an apocalyptic number.

11678515199 is a deficient number, since it is larger than the sum of its proper divisors (1137156481).

11678515199 is a wasteful number, since it uses less digits than its factorization.

11678515199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53750.

The product of its digits is 680400, while the sum is 53.

The spelling of 11678515199 in words is "eleven billion, six hundred seventy-eight million, five hundred fifteen thousand, one hundred ninety-nine".