11778513206 has 16 divisors (see below), whose sum is σ = 18712568160. Its totient is φ = 5541194880.

The previous prime is 11778513163. The next prime is 11778513217. The reversal of 11778513206 is 60231587711.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70040 + ... + 168708.

It is an arithmetic number, because the mean of its divisors is an integer number (1169535510).

Almost surely, 2^11778513206 is an apocalyptic number.

11778513206 is a deficient number, since it is larger than the sum of its proper divisors (6934054954).

11778513206 is a wasteful number, since it uses less digits than its factorization.

11778513206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102199.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 11778513206 in words is "eleven billion, seven hundred seventy-eight million, five hundred thirteen thousand, two hundred six".