128455108347 has 8 divisors (see below), whose sum is σ = 171613983744. Its totient is φ = 85466485928.

The previous prime is 128455108339. The next prime is 128455108351. The reversal of 128455108347 is 743801554821.

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 128455108347 - 2³ = 128455108339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128455108296 and 128455108305.

It is not an unprimeable number, because it can be changed into a prime (128455108357) 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, 42561483 + ... + 42564500.

It is an arithmetic number, because the mean of its divisors is an integer number (21451747968).

Almost surely, 2^128455108347 is an apocalyptic number.

128455108347 is a deficient number, since it is larger than the sum of its proper divisors (43158875397).

128455108347 is an equidigital number, since it uses as much as digits as its factorization.

128455108347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85126489.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 128455108347 in words is "one hundred twenty-eight billion, four hundred fifty-five million, one hundred eight thousand, three hundred forty-seven".