128347283407 has 8 divisors (see below), whose sum is σ = 148748562432. Its totient is φ = 108462492600.

The previous prime is 128347283399. The next prime is 128347283411. The reversal of 128347283407 is 704382743821.

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

It is not a de Polignac number, because 128347283407 - 2³ = 128347283399 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 (128347203407) 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, 129121519 + ... + 129122512.

It is an arithmetic number, because the mean of its divisors is an integer number (18593570304).

Almost surely, 2^128347283407 is an apocalyptic number.

128347283407 is a deficient number, since it is larger than the sum of its proper divisors (20401279025).

128347283407 is an equidigital number, since it uses as much as digits as its factorization.

128347283407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258244109.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 128347283407 in words is "one hundred twenty-eight billion, three hundred forty-seven million, two hundred eighty-three thousand, four hundred seven".