6816199410 has 40 divisors (see below), whose sum is σ = 18328005036. Its totient is φ = 1817652960.

The previous prime is 6816199391. The next prime is 6816199417. The reversal of 6816199410 is 149916186.

It can be written as a sum of positive squares in 2 ways, for example, as 5964318441 + 851880969 = 77229^2 + 29187^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6816199417) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4206721 + ... + 4208340.

Almost surely, 2^6816199410 is an apocalyptic number.

6816199410 is an abundant number, since it is smaller than the sum of its proper divisors (11511805626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6816199410 is a wasteful number, since it uses less digits than its factorization.

6816199410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8415080 (or 8415071 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 6816199410 is about 82560.2774341269. The cubic root of 6816199410 is about 1896.0397113538.

The spelling of 6816199410 in words is "six billion, eight hundred sixteen million, one hundred ninety-nine thousand, four hundred ten".