2128563455 has 16 divisors (see below), whose sum is σ = 2720179584. Its totient is φ = 1593408000.

The previous prime is 2128563433. The next prime is 2128563461. The reversal of 2128563455 is 5543658212.

It is not a de Polignac number, because 2128563455 - 2¹⁰ = 2128562431 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 57671 + ... + 87080.

It is an arithmetic number, because the mean of its divisors is an integer number (170011224).

Almost surely, 2^2128563455 is an apocalyptic number.

2128563455 is a deficient number, since it is larger than the sum of its proper divisors (591616129).

2128563455 is a wasteful number, since it uses less digits than its factorization.

2128563455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144946.

The product of its digits is 288000, while the sum is 41.

The square root of 2128563455 is about 46136.3571925656. The cubic root of 2128563455 is about 1286.3590329238.

The spelling of 2128563455 in words is "two billion, one hundred twenty-eight million, five hundred sixty-three thousand, four hundred fifty-five".