12537659657348 has 108 divisors (see below), whose sum is σ = 27519638037696. Its totient is φ = 4973864464800.

The previous prime is 12537659657333. The next prime is 12537659657377. The reversal of 12537659657348 is 84375695673521.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 2885153 + ... + 5779223.

It is an arithmetic number, because the mean of its divisors is an integer number (254811463312).

Almost surely, 2^{12537659657348} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12537659657348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13759819018848).

12537659657348 is an abundant number, since it is smaller than the sum of its proper divisors (14981978380348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12537659657348 is a wasteful number, since it uses less digits than its factorization.

12537659657348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894174 (or 2894134 counting only the distinct ones).

The product of its digits is 1143072000, while the sum is 71.

The spelling of 12537659657348 in words is "twelve trillion, five hundred thirty-seven billion, six hundred fifty-nine million, six hundred fifty-seven thousand, three hundred forty-eight".