12638756875757 has 8 divisors (see below), whose sum is σ = 13304256464160. Its totient is φ = 11973287473200.

The previous prime is 12638756875741. The next prime is 12638756875763. The reversal of 12638756875757 is 75757865783621.

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 12638756875757 - 2⁴ = 12638756875741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12638756805757) 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, 6684494 + ... + 8364207.

It is an arithmetic number, because the mean of its divisors is an integer number (1663032058020).

Almost surely, 2^{12638756875757} is an apocalyptic number.

It is an amenable number.

12638756875757 is a deficient number, since it is larger than the sum of its proper divisors (665499588403).

12638756875757 is a wasteful number, since it uses less digits than its factorization.

12638756875757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15092923.

The product of its digits is 4148928000, while the sum is 77.

The spelling of 12638756875757 in words is "twelve trillion, six hundred thirty-eight billion, seven hundred fifty-six million, eight hundred seventy-five thousand, seven hundred fifty-seven".