6493515197 has 4 divisors (see below), whose sum is σ = 6993016380. Its totient is φ = 5994014016.

The previous prime is 6493515191. The next prime is 6493515229. The reversal of 6493515197 is 7915153946.

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 4086533476 + 2406981721 = 63926^2 + 49061^2 .

It is a cyclic number.

It is not a de Polignac number, because 6493515197 - 2¹⁰ = 6493514173 is a prime.

It is a super-2 number, since 2×6493515197² = 84331479227339897618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6493515191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249750572 + ... + 249750597.

It is an arithmetic number, because the mean of its divisors is an integer number (1748254095).

Almost surely, 2^6493515197 is an apocalyptic number.

It is an amenable number.

6493515197 is a deficient number, since it is larger than the sum of its proper divisors (499501183).

6493515197 is a wasteful number, since it uses less digits than its factorization.

6493515197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499501182.

The product of its digits is 1020600, while the sum is 50.

The square root of 6493515197 is about 80582.3504062769. The cubic root of 6493515197 is about 1865.6347411433.

The spelling of 6493515197 in words is "six billion, four hundred ninety-three million, five hundred fifteen thousand, one hundred ninety-seven".