128663447593241 has 8 divisors (see below), whose sum is σ = 144153641529984. Its totient is φ = 113805506470320.

The previous prime is 128663447593193. The next prime is 128663447593267. The reversal of 128663447593241 is 142395744366821.

It is a happy number.

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 128663447593241 - 2²⁶ = 128663380484377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128663447533241) 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, 158063203025 + ... + 158063203838.

It is an arithmetic number, because the mean of its divisors is an integer number (18019205191248).

Almost surely, 2^{128663447593241} is an apocalyptic number.

128663447593241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

128663447593241 is a deficient number, since it is larger than the sum of its proper divisors (15490193936743).

128663447593241 is a wasteful number, since it uses less digits than its factorization.

128663447593241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316126406911.

The product of its digits is 209018880, while the sum is 65.

The spelling of 128663447593241 in words is "one hundred twenty-eight trillion, six hundred sixty-three billion, four hundred forty-seven million, five hundred ninety-three thousand, two hundred forty-one".