128252417547227 has 8 divisors (see below), whose sum is σ = 129047447638080. Its totient is φ = 127457487523080.

The previous prime is 128252417547217. The next prime is 128252417547253. The reversal of 128252417547227 is 722745714252821.

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 128252417547227 - 2³² = 128248122579931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128252417547217) 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, 22444577 + ... + 27572882.

It is an arithmetic number, because the mean of its divisors is an integer number (16130930954760).

Almost surely, 2^{128252417547227} is an apocalyptic number.

128252417547227 is a deficient number, since it is larger than the sum of its proper divisors (795030090853).

128252417547227 is a wasteful number, since it uses less digits than its factorization.

128252417547227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50033353.

The product of its digits is 35123200, while the sum is 59.

The spelling of 128252417547227 in words is "one hundred twenty-eight trillion, two hundred fifty-two billion, four hundred seventeen million, five hundred forty-seven thousand, two hundred twenty-seven".