128111213034886 has 16 divisors (see below), whose sum is σ = 193686062608368. Its totient is φ = 63549456412000.

The previous prime is 128111213034869. The next prime is 128111213034901. The reversal of 128111213034886 is 688430312111821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65090065 + ... + 67029388.

It is an arithmetic number, because the mean of its divisors is an integer number (12105378913023).

Almost surely, 2^{128111213034886} is an apocalyptic number.

128111213034886 is a deficient number, since it is larger than the sum of its proper divisors (65574849573482).

128111213034886 is a wasteful number, since it uses less digits than its factorization.

128111213034886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132123287.

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 128111213034886 in words is "one hundred twenty-eight trillion, one hundred eleven billion, two hundred thirteen million, thirty-four thousand, eight hundred eighty-six".