6493081205 has 8 divisors (see below), whose sum is σ = 8391058872. Its totient is φ = 4794890688.

The previous prime is 6493081163. The next prime is 6493081207. The reversal of 6493081205 is 5021803946.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 768342961 + 5724738244 = 27719^2 + 75662^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6493081205 - 2⁸ = 6493080949 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 (6493081207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49946714 + ... + 49946843.

It is an arithmetic number, because the mean of its divisors is an integer number (1048882359).

Almost surely, 2^6493081205 is an apocalyptic number.

6493081205 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6493081205 is a deficient number, since it is larger than the sum of its proper divisors (1897977667).

6493081205 is a wasteful number, since it uses less digits than its factorization.

6493081205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99893575.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6493081205 is about 80579.6575135437. The cubic root of 6493081205 is about 1865.5931771846.

The spelling of 6493081205 in words is "six billion, four hundred ninety-three million, eighty-one thousand, two hundred five".