12087015756 has 96 divisors (see below), whose sum is σ = 30377410560. Its totient is φ = 3728556864.

The previous prime is 12087015751. The next prime is 12087015769. The reversal of 12087015756 is 65751078021.

It is not an unprimeable number, because it can be changed into a prime (12087015751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9247255 + ... + 9248561.

It is an arithmetic number, because the mean of its divisors is an integer number (316431360).

Almost surely, 2^12087015756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12087015756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15188705280).

12087015756 is an abundant number, since it is smaller than the sum of its proper divisors (18290394804).

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

12087015756 is a wasteful number, since it uses less digits than its factorization.

12087015756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243 (or 2241 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 12087015756 in words is "twelve billion, eighty-seven million, fifteen thousand, seven hundred fifty-six".