128008812843 has 12 divisors (see below), whose sum is σ = 184912755768. Its totient is φ = 85334068320.

The previous prime is 128008812823. The next prime is 128008812887. The reversal of 128008812843 is 348218800821.

It is a happy number.

It is not a de Polignac number, because 128008812843 - 2¹⁴ = 128008796459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128008812823) 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, 267453 + ... + 572318.

It is an arithmetic number, because the mean of its divisors is an integer number (15409396314).

Almost surely, 2^128008812843 is an apocalyptic number.

128008812843 is a deficient number, since it is larger than the sum of its proper divisors (56903942925).

128008812843 is a wasteful number, since it uses less digits than its factorization.

128008812843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856714 (or 856711 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The spelling of 128008812843 in words is "one hundred twenty-eight billion, eight million, eight hundred twelve thousand, eight hundred forty-three".