128361101272571 has 8 divisors (see below), whose sum is σ = 128780006817600. Its totient is φ = 127942383123720.

The previous prime is 128361101272531. The next prime is 128361101272577. The reversal of 128361101272571 is 175272101163821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128361101272571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128361101272577) 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, 45476801 + ... + 48216818.

It is an arithmetic number, because the mean of its divisors is an integer number (16097500852200).

Almost surely, 2^{128361101272571} is an apocalyptic number.

128361101272571 is a deficient number, since it is larger than the sum of its proper divisors (418905545029).

128361101272571 is an equidigital number, since it uses as much as digits as its factorization.

128361101272571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93698089.

The product of its (nonzero) digits is 282240, while the sum is 47.

The spelling of 128361101272571 in words is "one hundred twenty-eight trillion, three hundred sixty-one billion, one hundred one million, two hundred seventy-two thousand, five hundred seventy-one".