11963194907 has 4 divisors (see below), whose sum is σ = 12483333840. Its totient is φ = 11443055976.

The previous prime is 11963194883. The next prime is 11963194949. The reversal of 11963194907 is 70949136911.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11963194907 - 2⁸ = 11963194651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11963194007) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 260069432 + ... + 260069477.

It is an arithmetic number, because the mean of its divisors is an integer number (3120833460).

Almost surely, 2^11963194907 is an apocalyptic number.

11963194907 is a deficient number, since it is larger than the sum of its proper divisors (520138933).

11963194907 is an equidigital number, since it uses as much as digits as its factorization.

11963194907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520138932.

The product of its (nonzero) digits is 367416, while the sum is 50.

The spelling of 11963194907 in words is "eleven billion, nine hundred sixty-three million, one hundred ninety-four thousand, nine hundred seven".