128706586993 has 8 divisors (see below), whose sum is σ = 131474635488. Its totient is φ = 125967523584.

The previous prime is 128706586933. The next prime is 128706586999. The reversal of 128706586993 is 399685607821.

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 128706586993 - 2²¹ = 128704489841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128706586999) 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, 7237296 + ... + 7255057.

It is an arithmetic number, because the mean of its divisors is an integer number (16434329436).

Almost surely, 2^128706586993 is an apocalyptic number.

It is an amenable number.

128706586993 is a deficient number, since it is larger than the sum of its proper divisors (2768048495).

128706586993 is a wasteful number, since it uses less digits than its factorization.

128706586993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14492543.

The product of its (nonzero) digits is 39191040, while the sum is 64.

The spelling of 128706586993 in words is "one hundred twenty-eight billion, seven hundred six million, five hundred eighty-six thousand, nine hundred ninety-three".