6440286005 has 16 divisors (see below), whose sum is σ = 8072590464. Its totient is φ = 4923188160.

The previous prime is 6440285993. The next prime is 6440286007. The reversal of 6440286005 is 5006820446.

It is not a de Polignac number, because 6440286005 - 2⁴ = 6440285989 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 (6440286007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86570 + ... + 142740.

It is an arithmetic number, because the mean of its divisors is an integer number (504536904).

Almost surely, 2^6440286005 is an apocalyptic number.

It is an amenable number.

6440286005 is a deficient number, since it is larger than the sum of its proper divisors (1632304459).

6440286005 is a wasteful number, since it uses less digits than its factorization.

6440286005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57196.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 6440286005 is about 80251.3925424351. The cubic root of 6440286005 is about 1860.5230352603.

The spelling of 6440286005 in words is "six billion, four hundred forty million, two hundred eighty-six thousand, five".