11712067478 has 4 divisors (see below), whose sum is σ = 17568101220. Its totient is φ = 5856033738.

The previous prime is 11712067469. The next prime is 11712067537. The reversal of 11712067478 is 87476021711.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2928016868 + ... + 2928016871.

It is an arithmetic number, because the mean of its divisors is an integer number (4392025305).

Almost surely, 2^11712067478 is an apocalyptic number.

11712067478 is a deficient number, since it is larger than the sum of its proper divisors (5856033742).

11712067478 is an equidigital number, since it uses as much as digits as its factorization.

11712067478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5856033741.

The product of its (nonzero) digits is 131712, while the sum is 44.

The spelling of 11712067478 in words is "eleven billion, seven hundred twelve million, sixty-seven thousand, four hundred seventy-eight".