12158028207 has 16 divisors (see below), whose sum is σ = 19397424480. Its totient is φ = 7481863296.

The previous prime is 12158028203. The next prime is 12158028299. The reversal of 12158028207 is 70282085121.

It is not a de Polignac number, because 12158028207 - 2² = 12158028203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12158028203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17318778 + ... + 17319479.

It is an arithmetic number, because the mean of its divisors is an integer number (1212339030).

Almost surely, 2^12158028207 is an apocalyptic number.

12158028207 is a deficient number, since it is larger than the sum of its proper divisors (7239396273).

12158028207 is a wasteful number, since it uses less digits than its factorization.

12158028207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34638279 (or 34638273 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 12158028207 in words is "twelve billion, one hundred fifty-eight million, twenty-eight thousand, two hundred seven".