12158273787 has 16 divisors (see below), whose sum is σ = 17687013888. Its totient is φ = 7367712480.

The previous prime is 12158273773. The next prime is 12158273821. The reversal of 12158273787 is 78737285121.

It is a happy number.

12158273787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12158273787 - 2¹⁵ = 12158241019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12158273737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310638 + ... + 347580.

It is an arithmetic number, because the mean of its divisors is an integer number (1105438368).

Almost surely, 2^12158273787 is an apocalyptic number.

12158273787 is a deficient number, since it is larger than the sum of its proper divisors (5528740101).

12158273787 is a wasteful number, since it uses less digits than its factorization.

12158273787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46930.

The product of its digits is 1317120, while the sum is 51.

The spelling of 12158273787 in words is "twelve billion, one hundred fifty-eight million, two hundred seventy-three thousand, seven hundred eighty-seven".