8146668849 has 16 divisors (see below), whose sum is σ = 12073281984. Its totient is φ = 4844216000.

The previous prime is 8146668833. The next prime is 8146668851. The reversal of 8146668849 is 9488666418.

It is a cyclic number.

It is not a de Polignac number, because 8146668849 - 2⁴ = 8146668833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8146668792 and 8146668801.

It is not an unprimeable number, because it can be changed into a prime (8146668809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2327202 + ... + 2330699.

It is an arithmetic number, because the mean of its divisors is an integer number (754580124).

Almost surely, 2^8146668849 is an apocalyptic number.

It is an amenable number.

8146668849 is a deficient number, since it is larger than the sum of its proper divisors (3926613135).

8146668849 is a wasteful number, since it uses less digits than its factorization.

8146668849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4657968.

The product of its digits is 15925248, while the sum is 60.

The square root of 8146668849 is about 90258.8990017051. The cubic root of 8146668849 is about 2012.1484621065.

The spelling of 8146668849 in words is "eight billion, one hundred forty-six million, six hundred sixty-eight thousand, eight hundred forty-nine".