128034577735681 has 8 divisors (see below), whose sum is σ = 130771745838720. Its totient is φ = 125297952472368.

The previous prime is 128034577735639. The next prime is 128034577735697. The reversal of 128034577735681 is 186537775430821.

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 128034577735681 - 2³¹ = 128032430252033 is a prime.

It is a super-2 number, since 2×128034577735681² (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 (128034577775681) 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, 135233151 + ... + 136176628.

It is an arithmetic number, because the mean of its divisors is an integer number (16346468229840).

Almost surely, 2^{128034577735681} is an apocalyptic number.

It is an amenable number.

128034577735681 is a deficient number, since it is larger than the sum of its proper divisors (2737168103039).

128034577735681 is a wasteful number, since it uses less digits than its factorization.

128034577735681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271419863.

The product of its (nonzero) digits is 237081600, while the sum is 67.

The spelling of 128034577735681 in words is "one hundred twenty-eight trillion, thirty-four billion, five hundred seventy-seven million, seven hundred thirty-five thousand, six hundred eighty-one".