128786112001 has 4 divisors (see below), whose sum is σ = 128796921792. Its totient is φ = 128775302212.

The previous prime is 128786111947. The next prime is 128786112017. The reversal of 128786112001 is 100211687821.

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 128786112001 - 2⁷ = 128786111873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128786112401) 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, 5387005 + ... + 5410858.

It is an arithmetic number, because the mean of its divisors is an integer number (32199230448).

Almost surely, 2^128786112001 is an apocalyptic number.

It is an amenable number.

128786112001 is a deficient number, since it is larger than the sum of its proper divisors (10809791).

128786112001 is a wasteful number, since it uses less digits than its factorization.

128786112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10809790.

The product of its (nonzero) digits is 10752, while the sum is 37.

Adding to 128786112001 its reverse (100211687821), we get a palindrome (228997799822).

The spelling of 128786112001 in words is "one hundred twenty-eight billion, seven hundred eighty-six million, one hundred twelve thousand, one".