2126784855 has 32 divisors (see below), whose sum is σ = 3857495040. Its totient is φ = 991923840.

The previous prime is 2126784811. The next prime is 2126784899. The reversal of 2126784855 is 5584876212.

It is an interprime number because it is at equal distance from previous prime (2126784811) and next prime (2126784899).

It is not a de Polignac number, because 2126784855 - 2¹⁰ = 2126783831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283311 + ... + 290720.

It is an arithmetic number, because the mean of its divisors is an integer number (120546720).

Almost surely, 2^2126784855 is an apocalyptic number.

2126784855 is a deficient number, since it is larger than the sum of its proper divisors (1730710185).

2126784855 is a wasteful number, since it uses less digits than its factorization.

2126784855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574071.

The product of its digits is 1075200, while the sum is 48.

The square root of 2126784855 is about 46117.0776936267. The cubic root of 2126784855 is about 1286.0006447789. Note that the first 3 decimals are identical.

The spelling of 2126784855 in words is "two billion, one hundred twenty-six million, seven hundred eighty-four thousand, eight hundred fifty-five".