128255682703 has 16 divisors (see below), whose sum is σ = 132806187360. Its totient is φ = 123778969600.

The previous prime is 128255682689. The next prime is 128255682727. The reversal of 128255682703 is 307286552821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128255682703 is a prime.

It is a super-3 number, since 3×128255682703³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128255682103) 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, 1664943 + ... + 1740271.

It is an arithmetic number, because the mean of its divisors is an integer number (8300386710).

Almost surely, 2^128255682703 is an apocalyptic number.

128255682703 is a deficient number, since it is larger than the sum of its proper divisors (4550504657).

128255682703 is a wasteful number, since it uses less digits than its factorization.

128255682703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75818.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 128255682703 in words is "one hundred twenty-eight billion, two hundred fifty-five million, six hundred eighty-two thousand, seven hundred three".