12158526327 has 32 divisors (see below), whose sum is σ = 17473252608. Its totient is φ = 7492947456.

The previous prime is 12158526323. The next prime is 12158526467. The reversal of 12158526327 is 72362585121.

It is not a de Polignac number, because 12158526327 - 2² = 12158526323 is a prime.

It is a super-2 number, since 2×12158526327² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12158526323) 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 31 ways as a sum of consecutive naturals, for example, 724008 + ... + 740610.

It is an arithmetic number, because the mean of its divisors is an integer number (546039144).

Almost surely, 2^12158526327 is an apocalyptic number.

12158526327 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12158526327 is a deficient number, since it is larger than the sum of its proper divisors (5314726281).

12158526327 is a wasteful number, since it uses less digits than its factorization.

12158526327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16879.

The product of its digits is 201600, while the sum is 42.

The spelling of 12158526327 in words is "twelve billion, one hundred fifty-eight million, five hundred twenty-six thousand, three hundred twenty-seven".