128857153483069 has 4 divisors (see below), whose sum is σ = 140571440163360. Its totient is φ = 117142866802780.

The previous prime is 128857153483049. The next prime is 128857153483109. The reversal of 128857153483069 is 960384351758821.

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 128857153483069 - 2⁹ = 128857153482557 is a prime.

It is a super-2 number, since 2×128857153483069² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128857153482989 and 128857153483007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128857153483049) 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, 5857143340129 + ... + 5857143340150.

It is an arithmetic number, because the mean of its divisors is an integer number (35142860040840).

It is a 3-persistent number, because k⋅128857153483069 is pandigital for 1 ≤ k ≤ 3, but not for k = 4.

Almost surely, 2^{128857153483069} is an apocalyptic number.

It is an amenable number.

128857153483069 is a deficient number, since it is larger than the sum of its proper divisors (11714286680291).

128857153483069 is a wasteful number, since it uses less digits than its factorization.

128857153483069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11714286680290.

The product of its (nonzero) digits is 348364800, while the sum is 70.

The spelling of 128857153483069 in words is "one hundred twenty-eight trillion, eight hundred fifty-seven billion, one hundred fifty-three million, four hundred eighty-three thousand, sixty-nine".