128518929914023 has 8 divisors (see below), whose sum is σ = 140282174799360. Its totient is φ = 116768969329080.

The previous prime is 128518929913987. The next prime is 128518929914083. The reversal of 128518929914023 is 320419929815821.

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 128518929914023 - 2¹³ = 128518929905831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128518929914083) 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, 3321054865 + ... + 3321093562.

It is an arithmetic number, because the mean of its divisors is an integer number (17535271849920).

Almost surely, 2^{128518929914023} is an apocalyptic number.

128518929914023 is a deficient number, since it is larger than the sum of its proper divisors (11763244885337).

128518929914023 is a wasteful number, since it uses less digits than its factorization.

128518929914023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642150197.

The product of its (nonzero) digits is 22394880, while the sum is 64.

The spelling of 128518929914023 in words is "one hundred twenty-eight trillion, five hundred eighteen billion, nine hundred twenty-nine million, nine hundred fourteen thousand, twenty-three".