12051574774 has 8 divisors (see below), whose sum is σ = 18215357688. Its totient is φ = 5979788880.

The previous prime is 12051574729. The next prime is 12051574781. The reversal of 12051574774 is 47747515021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12051574774.

It is a congruent number.

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, 22998927 + ... + 22999450.

It is an arithmetic number, because the mean of its divisors is an integer number (2276919711).

Almost surely, 2^12051574774 is an apocalyptic number.

12051574774 is a deficient number, since it is larger than the sum of its proper divisors (6163782914).

12051574774 is a wasteful number, since it uses less digits than its factorization.

12051574774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45998510.

The product of its (nonzero) digits is 274400, while the sum is 43.

The spelling of 12051574774 in words is "twelve billion, fifty-one million, five hundred seventy-four thousand, seven hundred seventy-four".