12537526251273 has 4 divisors (see below), whose sum is σ = 16716701668368. Its totient is φ = 8358350834180.

The previous prime is 12537526251259. The next prime is 12537526251287. The reversal of 12537526251273 is 37215262573521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12537526251259) and next prime (12537526251287).

It is a cyclic number.

It is not a de Polignac number, because 12537526251273 - 2¹⁴ = 12537526234889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12537526251203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089587708543 + ... + 2089587708548.

It is an arithmetic number, because the mean of its divisors is an integer number (4179175417092).

Almost surely, 2^{12537526251273} is an apocalyptic number.

It is an amenable number.

12537526251273 is a deficient number, since it is larger than the sum of its proper divisors (4179175417095).

12537526251273 is an equidigital number, since it uses as much as digits as its factorization.

12537526251273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179175417094.

The product of its digits is 5292000, while the sum is 51.

The spelling of 12537526251273 in words is "twelve trillion, five hundred thirty-seven billion, five hundred twenty-six million, two hundred fifty-one thousand, two hundred seventy-three".