6405385612 has 12 divisors (see below), whose sum is σ = 11210131800. Its totient is φ = 3202490816.

The previous prime is 6405385607. The next prime is 6405385627. The reversal of 6405385612 is 2165835046.

It is a super-2 number, since 2×6405385612² = 82057929676833229088, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38139 + ... + 119437.

It is an arithmetic number, because the mean of its divisors is an integer number (934177650).

Almost surely, 2^6405385612 is an apocalyptic number.

It is an amenable number.

6405385612 is a deficient number, since it is larger than the sum of its proper divisors (4804746188).

6405385612 is a wasteful number, since it uses less digits than its factorization.

6405385612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101000 (or 100998 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 6405385612 is about 80033.6529967238. The cubic root of 6405385612 is about 1857.1561748597.

The spelling of 6405385612 in words is "six billion, four hundred five million, three hundred eighty-five thousand, six hundred twelve".