128582382423511 has 4 divisors (see below), whose sum is σ = 131318177794272. Its totient is φ = 125846587052752.

The previous prime is 128582382423493. The next prime is 128582382423587. The reversal of 128582382423511 is 115324283285821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128582382423511 - 2⁹ = 128582382422999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128582382423211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367897685310 + ... + 1367897685403.

It is an arithmetic number, because the mean of its divisors is an integer number (32829544448568).

Almost surely, 2^{128582382423511} is an apocalyptic number.

128582382423511 is a deficient number, since it is larger than the sum of its proper divisors (2735795370761).

128582382423511 is an equidigital number, since it uses as much as digits as its factorization.

128582382423511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735795370760.

The product of its digits is 7372800, while the sum is 55.

The spelling of 128582382423511 in words is "one hundred twenty-eight trillion, five hundred eighty-two billion, three hundred eighty-two million, four hundred twenty-three thousand, five hundred eleven".