128476733313 has 4 divisors (see below), whose sum is σ = 171302311088. Its totient is φ = 85651155540.

The previous prime is 128476733311. The next prime is 128476733339. The reversal of 128476733313 is 313337674821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313337674821 = 3 ⋅104445891607.

It is not a de Polignac number, because 128476733313 - 2¹ = 128476733311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128476733311) 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 3 ways as a sum of consecutive naturals, for example, 21412788883 + ... + 21412788888.

It is an arithmetic number, because the mean of its divisors is an integer number (42825577772).

Almost surely, 2^128476733313 is an apocalyptic number.

It is an amenable number.

128476733313 is a deficient number, since it is larger than the sum of its proper divisors (42825577775).

128476733313 is an equidigital number, since it uses as much as digits as its factorization.

128476733313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42825577774.

The product of its digits is 1524096, while the sum is 48.

The spelling of 128476733313 in words is "one hundred twenty-eight billion, four hundred seventy-six million, seven hundred thirty-three thousand, three hundred thirteen".