12567126257 has 32 divisors (see below), whose sum is σ = 15639194880. Its totient is φ = 9850982400.

The previous prime is 12567126181. The next prime is 12567126259. The reversal of 12567126257 is 75262176521.

12567126257 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 12567126257 - 2⁸ = 12567126001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12567126259) 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 31 ways as a sum of consecutive naturals, for example, 4485257 + ... + 4488057.

It is an arithmetic number, because the mean of its divisors is an integer number (488724840).

Almost surely, 2^12567126257 is an apocalyptic number.

12567126257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12567126257 is a deficient number, since it is larger than the sum of its proper divisors (3072068623).

12567126257 is a wasteful number, since it uses less digits than its factorization.

12567126257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881.

The product of its digits is 352800, while the sum is 44.

The spelling of 12567126257 in words is "twelve billion, five hundred sixty-seven million, one hundred twenty-six thousand, two hundred fifty-seven".