6812064109 has 4 divisors (see below), whose sum is σ = 6874560220. Its totient is φ = 6749568000.

The previous prime is 6812064097. The next prime is 6812064139. The reversal of 6812064109 is 9014602186.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3340262025 + 3471802084 = 57795^2 + 58922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6812064109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6812064139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31247892 + ... + 31248109.

It is an arithmetic number, because the mean of its divisors is an integer number (1718640055).

Almost surely, 2^6812064109 is an apocalyptic number.

It is an amenable number.

6812064109 is a deficient number, since it is larger than the sum of its proper divisors (62496111).

6812064109 is a wasteful number, since it uses less digits than its factorization.

6812064109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62496110.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 6812064109 is about 82535.2295023162. The cubic root of 6812064109 is about 1895.6561994388.

The spelling of 6812064109 in words is "six billion, eight hundred twelve million, sixty-four thousand, one hundred nine".