12057526209 has 8 divisors (see below), whose sum is σ = 16349188320. Its totient is φ = 7902107456.

The previous prime is 12057526207. The next prime is 12057526211. The reversal of 12057526209 is 90262575021.

It is an interprime number because it is at equal distance from previous prime (12057526207) and next prime (12057526211).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12057526209 - 2¹ = 12057526207 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12057526207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34060632 + ... + 34060985.

It is an arithmetic number, because the mean of its divisors is an integer number (2043648540).

Almost surely, 2^12057526209 is an apocalyptic number.

It is an amenable number.

12057526209 is a deficient number, since it is larger than the sum of its proper divisors (4291662111).

12057526209 is an equidigital number, since it uses as much as digits as its factorization.

12057526209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68121679.

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 12057526209 in words is "twelve billion, fifty-seven million, five hundred twenty-six thousand, two hundred nine".