128069489874 has 32 divisors (see below), whose sum is σ = 269315173440. Its totient is φ = 40542062400.

The previous prime is 128069489839. The next prime is 128069489881. The reversal of 128069489874 is 478984960821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6022432 + ... + 6043659.

It is an arithmetic number, because the mean of its divisors is an integer number (8416099170).

Almost surely, 2^128069489874 is an apocalyptic number.

128069489874 is an abundant number, since it is smaller than the sum of its proper divisors (141245683566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128069489874 is a wasteful number, since it uses less digits than its factorization.

128069489874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12066186.

The product of its (nonzero) digits is 55738368, while the sum is 66.

The spelling of 128069489874 in words is "one hundred twenty-eight billion, sixty-nine million, four hundred eighty-nine thousand, eight hundred seventy-four".