128345351039 has 4 divisors (see below), whose sum is σ = 128348531256. Its totient is φ = 128342170824.

The previous prime is 128345350979. The next prime is 128345351077. The reversal of 128345351039 is 930153543821.

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 128345351039 - 2³⁶ = 59625874303 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 (128345371039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1528784 + ... + 1610549.

It is an arithmetic number, because the mean of its divisors is an integer number (32087132814).

Almost surely, 2^128345351039 is an apocalyptic number.

128345351039 is a deficient number, since it is larger than the sum of its proper divisors (3180217).

128345351039 is an equidigital number, since it uses as much as digits as its factorization.

128345351039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180216.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 128345351039 in words is "one hundred twenty-eight billion, three hundred forty-five million, three hundred fifty-one thousand, thirty-nine".