12075031978 has 8 divisors (see below), whose sum is σ = 18497921472. Its totient is φ = 5909058156.

The previous prime is 12075031963. The next prime is 12075032003. The reversal of 12075031978 is 87913057021.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64228800 + ... + 64228987.

It is an arithmetic number, because the mean of its divisors is an integer number (2312240184).

Almost surely, 2^12075031978 is an apocalyptic number.

12075031978 is a deficient number, since it is larger than the sum of its proper divisors (6422889494).

12075031978 is a wasteful number, since it uses less digits than its factorization.

12075031978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128457836.

The product of its (nonzero) digits is 105840, while the sum is 43.

Adding to 12075031978 its reverse (87913057021), we get a palindrome (99988088999).

The spelling of 12075031978 in words is "twelve billion, seventy-five million, thirty-one thousand, nine hundred seventy-eight".