128575235088841 has 8 divisors (see below), whose sum is σ = 136138631735304. Its totient is φ = 121011854833920.

The previous prime is 128575235088823. The next prime is 128575235088847. The reversal of 128575235088841 is 148880532575821.

It can be written as a sum of positive squares in 4 ways, for example, as 57979026444816 + 70596208644025 = 7614396^2 + 8402155^2 .

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 128575235088841 - 2¹⁷ = 128575234957769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128575235088847) 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, 14450251 + ... + 21586111.

It is an arithmetic number, because the mean of its divisors is an integer number (17017328966913).

Almost surely, 2^{128575235088841} is an apocalyptic number.

It is an amenable number.

128575235088841 is a deficient number, since it is larger than the sum of its proper divisors (7563396646463).

128575235088841 is a wasteful number, since it uses less digits than its factorization.

128575235088841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8195771.

The product of its (nonzero) digits is 172032000, while the sum is 67.

The spelling of 128575235088841 in words is "one hundred twenty-eight trillion, five hundred seventy-five billion, two hundred thirty-five million, eighty-eight thousand, eight hundred forty-one".