11903867578 has 8 divisors (see below), whose sum is σ = 17901704340. Its totient is φ = 5936632800.

The previous prime is 11903867531. The next prime is 11903867579. The reversal of 11903867578 is 87576830911.

It is a happy number.

11903867578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11536263649 + 367603929 = 107407^2 + 19173^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11903867579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7649523 + ... + 7651078.

Almost surely, 2^11903867578 is an apocalyptic number.

11903867578 is a deficient number, since it is larger than the sum of its proper divisors (5997836762).

11903867578 is a wasteful number, since it uses less digits than its factorization.

11903867578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15300992.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 11903867578 in words is "eleven billion, nine hundred three million, eight hundred sixty-seven thousand, five hundred seventy-eight".