128318717743757 has 16 divisors (see below), whose sum is σ = 131841533736000. Its totient is φ = 124820743697664.

The previous prime is 128318717743751. The next prime is 128318717743759. The reversal of 128318717743757 is 757347717813821.

It is a cyclic number.

It is not a de Polignac number, because 128318717743757 - 2¹⁴ = 128318717727373 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 (128318717743751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28052294 + ... + 32304312.

It is an arithmetic number, because the mean of its divisors is an integer number (8240095858500).

Almost surely, 2^{128318717743757} is an apocalyptic number.

It is an amenable number.

128318717743757 is a deficient number, since it is larger than the sum of its proper divisors (3522815992243).

128318717743757 is a wasteful number, since it uses less digits than its factorization.

128318717743757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254940.

The product of its digits is 387233280, while the sum is 71.

The spelling of 128318717743757 in words is "one hundred twenty-eight trillion, three hundred eighteen billion, seven hundred seventeen million, seven hundred forty-three thousand, seven hundred fifty-seven".