128227784383 has 8 divisors (see below), whose sum is σ = 135087004800. Its totient is φ = 121379602968.

The previous prime is 128227784339. The next prime is 128227784387. The reversal of 128227784383 is 383487722821.

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 128227784383 - 2¹³ = 128227776191 is a prime.

It is a super-3 number, since 3×128227784383³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128227784387) 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, 2735893 + ... + 2782366.

It is an arithmetic number, because the mean of its divisors is an integer number (16885875600).

Almost surely, 2^128227784383 is an apocalyptic number.

128227784383 is a deficient number, since it is larger than the sum of its proper divisors (6859220417).

128227784383 is a wasteful number, since it uses less digits than its factorization.

128227784383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5519501.

The product of its digits is 7225344, while the sum is 55.

The spelling of 128227784383 in words is "one hundred twenty-eight billion, two hundred twenty-seven million, seven hundred eighty-four thousand, three hundred eighty-three".