8124643111 has 32 divisors (see below), whose sum is σ = 9412393536. Its totient is φ = 6946560000.

The previous prime is 8124643099. The next prime is 8124643117. The reversal of 8124643111 is 1113464218.

It is a 11-Lehmer number, since φ(8124643111) divides (8124643111-1)¹¹.

It is a cyclic number.

It is not a de Polignac number, because 8124643111 - 2⁷ = 8124642983 is a prime.

It is a super-2 number, since 2×8124643111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8124643117) by changing a digit.

It is a nontrivial repunit in base 2010.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4039096 + ... + 4041106.

It is an arithmetic number, because the mean of its divisors is an integer number (294137298).

Almost surely, 2^8124643111 is an apocalyptic number.

8124643111 is a deficient number, since it is larger than the sum of its proper divisors (1287750425).

8124643111 is a wasteful number, since it uses less digits than its factorization.

8124643111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323.

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

The square root of 8124643111 is about 90136.8022008769. The cubic root of 8124643111 is about 2010.3334439344. Note that the first 3 decimals are identical.

The spelling of 8124643111 in words is "eight billion, one hundred twenty-four million, six hundred forty-three thousand, one hundred eleven".