11878304268 has 12 divisors (see below), whose sum is σ = 27716043320. Its totient is φ = 3959434752.

The previous prime is 11878304267. The next prime is 11878304279. The reversal of 11878304268 is 86240387811.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×11878304268² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11878304261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494929333 + ... + 494929356.

Almost surely, 2^11878304268 is an apocalyptic number.

It is an amenable number.

11878304268 is an abundant number, since it is smaller than the sum of its proper divisors (15837739052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11878304268 is a wasteful number, since it uses less digits than its factorization.

11878304268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989858696 (or 989858694 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 11878304268 in words is "eleven billion, eight hundred seventy-eight million, three hundred four thousand, two hundred sixty-eight".