12000773256 has 32 divisors (see below), whose sum is σ = 30077528640. Its totient is φ = 3990178368.

The previous prime is 12000773249. The next prime is 12000773269. The reversal of 12000773256 is 65237700021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620236 + ... + 639291.

It is an arithmetic number, because the mean of its divisors is an integer number (939922770).

Almost surely, 2^12000773256 is an apocalyptic number.

It is an amenable number.

12000773256 is an abundant number, since it is smaller than the sum of its proper divisors (18076755384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12000773256 is a wasteful number, since it uses less digits than its factorization.

12000773256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259933 (or 1259929 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The spelling of 12000773256 in words is "twelve billion, seven hundred seventy-three thousand, two hundred fifty-six".