128201441785 has 8 divisors (see below), whose sum is σ = 156137875776. Its totient is φ = 101030389680.

The previous prime is 128201441761. The next prime is 128201441803. The reversal of 128201441785 is 587144102821.

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

It is not a de Polignac number, because 128201441785 - 2⁹ = 128201441273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191345101 + ... + 191345770.

It is an arithmetic number, because the mean of its divisors is an integer number (19517234472).

Almost surely, 2^128201441785 is an apocalyptic number.

It is an amenable number.

128201441785 is a deficient number, since it is larger than the sum of its proper divisors (27936433991).

128201441785 is an equidigital number, since it uses as much as digits as its factorization.

128201441785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382690943.

The product of its (nonzero) digits is 143360, while the sum is 43.

The spelling of 128201441785 in words is "one hundred twenty-eight billion, two hundred one million, four hundred forty-one thousand, seven hundred eighty-five".