2126543426 has 16 divisors (see below), whose sum is σ = 3649375296. Its totient is φ = 910407696.

The previous prime is 2126543423. The next prime is 2126543437. The reversal of 2126543426 is 6243456212.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2126543423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66941 + ... + 93456.

It is an arithmetic number, because the mean of its divisors is an integer number (228085956).

Almost surely, 2^2126543426 is an apocalyptic number.

2126543426 is a deficient number, since it is larger than the sum of its proper divisors (1522831870).

2126543426 is a wasteful number, since it uses less digits than its factorization.

2126543426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161353.

The product of its digits is 69120, while the sum is 35.

The square root of 2126543426 is about 46114.4600532197. The cubic root of 2126543426 is about 1285.9519814021.

Adding to 2126543426 its reverse (6243456212), we get a palindrome (8369999638).

The spelling of 2126543426 in words is "two billion, one hundred twenty-six million, five hundred forty-three thousand, four hundred twenty-six".