128424786071 has 8 divisors (see below), whose sum is σ = 132857356080. Its totient is φ = 123992491392.

The previous prime is 128424786067. The next prime is 128424786097. The reversal of 128424786071 is 170687424821.

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 128424786071 - 2² = 128424786067 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 (128424786011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444031 + ... + 1530383.

It is an arithmetic number, because the mean of its divisors is an integer number (16607169510).

Almost surely, 2^128424786071 is an apocalyptic number.

128424786071 is a deficient number, since it is larger than the sum of its proper divisors (4432570009).

128424786071 is an equidigital number, since it uses as much as digits as its factorization.

128424786071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137665.

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 128424786071 in words is "one hundred twenty-eight billion, four hundred twenty-four million, seven hundred eighty-six thousand, seventy-one".