12074788478 has 4 divisors (see below), whose sum is σ = 18112182720. Its totient is φ = 6037394238.

The previous prime is 12074788459. The next prime is 12074788483. The reversal of 12074788478 is 87488747021.

It is a happy number.

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

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, 3018697118 + ... + 3018697121.

It is an arithmetic number, because the mean of its divisors is an integer number (4528045680).

Almost surely, 2^12074788478 is an apocalyptic number.

12074788478 is a deficient number, since it is larger than the sum of its proper divisors (6037394242).

12074788478 is an equidigital number, since it uses as much as digits as its factorization.

12074788478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037394241.

The product of its (nonzero) digits is 5619712, while the sum is 56.

The spelling of 12074788478 in words is "twelve billion, seventy-four million, seven hundred eighty-eight thousand, four hundred seventy-eight".