2126057867 has 4 divisors (see below), whose sum is σ = 2156002416. Its totient is φ = 2096113320.

The previous prime is 2126057837. The next prime is 2126057891. The reversal of 2126057867 is 7687506212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2126057867 - 2¹⁰ = 2126056843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126057837) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14972168 + ... + 14972309.

It is an arithmetic number, because the mean of its divisors is an integer number (539000604).

Almost surely, 2^2126057867 is an apocalyptic number.

2126057867 is a deficient number, since it is larger than the sum of its proper divisors (29944549).

2126057867 is an equidigital number, since it uses as much as digits as its factorization.

2126057867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29944548.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 2126057867 is about 46109.1950374326. The cubic root of 2126057867 is about 1285.8540990702.

The spelling of 2126057867 in words is "two billion, one hundred twenty-six million, fifty-seven thousand, eight hundred sixty-seven".