2111426806 has 4 divisors (see below), whose sum is σ = 3167140212. Its totient is φ = 1055713402.

The previous prime is 2111426797. The next prime is 2111426831. The reversal of 2111426806 is 6086241112.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527856700 + ... + 527856703.

It is an arithmetic number, because the mean of its divisors is an integer number (791785053).

Almost surely, 2^2111426806 is an apocalyptic number.

2111426806 is a deficient number, since it is larger than the sum of its proper divisors (1055713406).

2111426806 is a wasteful number, since it uses less digits than its factorization.

2111426806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055713405.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2111426806 is about 45950.2644823727. The cubic root of 2111426806 is about 1282.8976520878.

Adding to 2111426806 its reverse (6086241112), we get a palindrome (8197667918).

The spelling of 2111426806 in words is "two billion, one hundred eleven million, four hundred twenty-six thousand, eight hundred six".