128375105885883 has 10 divisors (see below), whose sum is σ = 191770219903724. Its totient is φ = 85583403923868.

The previous prime is 128375105885879. The next prime is 128375105885933. The reversal of 128375105885883 is 388588501573821.

128375105885883 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 7 + 510 + 58 + 8 + 58 + 8 + 3 = 666.

It is not a de Polignac number, because 128375105885883 - 2² = 128375105885879 is a prime.

It is a super-2 number, since 2×128375105885883² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128375105885783) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 792438925141 + ... + 792438925302.

Almost surely, 2^{128375105885883} is an apocalyptic number.

128375105885883 is a deficient number, since it is larger than the sum of its proper divisors (63395114017841).

128375105885883 is an equidigital number, since it uses as much as digits as its factorization.

128375105885883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584877850455 (or 1584877850446 counting only the distinct ones).

The product of its (nonzero) digits is 516096000, while the sum is 72.

The spelling of 128375105885883 in words is "one hundred twenty-eight trillion, three hundred seventy-five billion, one hundred five million, eight hundred eighty-five thousand, eight hundred eighty-three".