128363082717601 has 4 divisors (see below), whose sum is σ = 135119034439600. Its totient is φ = 121607130995604.

The previous prime is 128363082717593. The next prime is 128363082717613. The reversal of 128363082717601 is 106717280363821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 128363082717601 - 2³ = 128363082717593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128363082717631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3377975860971 + ... + 3377975861008.

It is an arithmetic number, because the mean of its divisors is an integer number (33779758609900).

Almost surely, 2^{128363082717601} is an apocalyptic number.

It is an amenable number.

128363082717601 is a deficient number, since it is larger than the sum of its proper divisors (6755951721999).

128363082717601 is an equidigital number, since it uses as much as digits as its factorization.

128363082717601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6755951721998.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 128363082717601 in words is "one hundred twenty-eight trillion, three hundred sixty-three billion, eighty-two million, seven hundred seventeen thousand, six hundred one".