128855246351 has 12 divisors (see below), whose sum is σ = 139723837920. Its totient is φ = 118777763520.

The previous prime is 128855246347. The next prime is 128855246363. The reversal of 128855246351 is 153642558821.

It is not a de Polignac number, because 128855246351 - 2² = 128855246347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128855246351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128855246951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408710 + ... + 651731.

It is an arithmetic number, because the mean of its divisors is an integer number (11643653160).

Almost surely, 2^128855246351 is an apocalyptic number.

128855246351 is a deficient number, since it is larger than the sum of its proper divisors (10868591569).

128855246351 is a wasteful number, since it uses less digits than its factorization.

128855246351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061186 (or 1061173 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 50.

The spelling of 128855246351 in words is "one hundred twenty-eight billion, eight hundred fifty-five million, two hundred forty-six thousand, three hundred fifty-one".