6410021005 has 4 divisors (see below), whose sum is σ = 7692025212. Its totient is φ = 5128016800.

The previous prime is 6410020997. The next prime is 6410021083. The reversal of 6410021005 is 5001200146.

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 1951253929 + 4458767076 = 44173^2 + 66774^2 .

It is not a de Polignac number, because 6410021005 - 2³ = 6410020997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641002096 + ... + 641002105.

It is an arithmetic number, because the mean of its divisors is an integer number (1923006303).

Almost surely, 2^6410021005 is an apocalyptic number.

It is an amenable number.

6410021005 is a deficient number, since it is larger than the sum of its proper divisors (1282004207).

6410021005 is a wasteful number, since it uses less digits than its factorization.

6410021005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282004206.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 6410021005 is about 80062.6067836915. The cubic root of 6410021005 is about 1857.6040569742.

The spelling of 6410021005 in words is "six billion, four hundred ten million, twenty-one thousand, five".