128906958035 has 4 divisors (see below), whose sum is σ = 154688349648. Its totient is φ = 103125566424.

The previous prime is 128906958001. The next prime is 128906958049. The reversal of 128906958035 is 530859609821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128906958035 - 2⁸ = 128906957779 is a prime.

It is a super-2 number, since 2×128906958035² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12890695799 + ... + 12890695808.

It is an arithmetic number, because the mean of its divisors is an integer number (38672087412).

Almost surely, 2^128906958035 is an apocalyptic number.

128906958035 is a deficient number, since it is larger than the sum of its proper divisors (25781391613).

128906958035 is an equidigital number, since it uses as much as digits as its factorization.

128906958035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25781391612.

The product of its (nonzero) digits is 4665600, while the sum is 56.

The spelling of 128906958035 in words is "one hundred twenty-eight billion, nine hundred six million, nine hundred fifty-eight thousand, thirty-five".