128528755786311 has 8 divisors (see below), whose sum is σ = 171471950382960. Its totient is φ = 85635699190272.

The previous prime is 128528755786307. The next prime is 128528755786357. The reversal of 128528755786311 is 113687557825821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128528755786311 - 2² = 128528755786307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128528755786391) 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, 12534494170 + ... + 12534504423.

It is an arithmetic number, because the mean of its divisors is an integer number (21433993797870).

Almost surely, 2^{128528755786311} is an apocalyptic number.

128528755786311 is a deficient number, since it is larger than the sum of its proper divisors (42943194596649).

128528755786311 is a wasteful number, since it uses less digits than its factorization.

128528755786311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25069000305.

The product of its digits is 225792000, while the sum is 69.

The spelling of 128528755786311 in words is "one hundred twenty-eight trillion, five hundred twenty-eight billion, seven hundred fifty-five million, seven hundred eighty-six thousand, three hundred eleven".