2128557309202 has 16 divisors (see below), whose sum is σ = 3206185379712. Its totient is φ = 1059834410800.

The previous prime is 2128557309191. The next prime is 2128557309289. The reversal of 2128557309202 is 2029037558212.

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, 623674 + ... + 2155477.

It is an arithmetic number, because the mean of its divisors is an integer number (200386586232).

Almost surely, 2^{2128557309202} is an apocalyptic number.

2128557309202 is a deficient number, since it is larger than the sum of its proper divisors (1077628070510).

2128557309202 is a wasteful number, since it uses less digits than its factorization.

2128557309202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780753.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 2128557309202 in words is "two trillion, one hundred twenty-eight billion, five hundred fifty-seven million, three hundred nine thousand, two hundred two".