2128734218930 has 16 divisors (see below), whose sum is σ = 4180059921024. Its totient is φ = 774085170480.

The previous prime is 2128734218927. The next prime is 2128734218951. The reversal of 2128734218930 is 398124378212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9676064522 + ... + 9676064741.

It is an arithmetic number, because the mean of its divisors is an integer number (261253745064).

Almost surely, 2^{2128734218930} is an apocalyptic number.

2128734218930 is a deficient number, since it is larger than the sum of its proper divisors (2051325702094).

2128734218930 is a wasteful number, since it uses less digits than its factorization.

2128734218930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19352129281.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 2128734218930 in words is "two trillion, one hundred twenty-eight billion, seven hundred thirty-four million, two hundred eighteen thousand, nine hundred thirty".