128652567722 has 32 divisors (see below), whose sum is σ = 222813130752. Its totient is φ = 54571295664.

The previous prime is 128652567721. The next prime is 128652567773. The reversal of 128652567722 is 227765256821.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (128652567721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613363 + ... + 1691225.

It is an arithmetic number, because the mean of its divisors is an integer number (6962910336).

Almost surely, 2^128652567722 is an apocalyptic number.

128652567722 is a deficient number, since it is larger than the sum of its proper divisors (94160563030).

128652567722 is a wasteful number, since it uses less digits than its factorization.

128652567722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79082.

The product of its digits is 5644800, while the sum is 53.

The spelling of 128652567722 in words is "one hundred twenty-eight billion, six hundred fifty-two million, five hundred sixty-seven thousand, seven hundred twenty-two".