2126845849 has 8 divisors (see below), whose sum is σ = 2179827720. Its totient is φ = 2073916800.

The previous prime is 2126845813. The next prime is 2126845871. The reversal of 2126845849 is 9485486212.

It can be written as a sum of positive squares in 4 ways, for example, as 61779600 + 2065066249 = 7860^2 + 45443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2126845849 - 2¹¹ = 2126843801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126845349) 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, 75667 + ... + 99895.

It is an arithmetic number, because the mean of its divisors is an integer number (272478465).

Almost surely, 2^2126845849 is an apocalyptic number.

It is an amenable number.

2126845849 is a deficient number, since it is larger than the sum of its proper divisors (52981871).

2126845849 is a wasteful number, since it uses less digits than its factorization.

2126845849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26411.

The product of its digits is 1105920, while the sum is 49.

The square root of 2126845849 is about 46117.7389840395. The cubic root of 2126845849 is about 1286.0129383862.

The spelling of 2126845849 in words is "two billion, one hundred twenty-six million, eight hundred forty-five thousand, eight hundred forty-nine".