3643281064 has 16 divisors (see below), whose sum is σ = 6858371520. Its totient is φ = 1814382000.

The previous prime is 3643281041. The next prime is 3643281071. The reversal of 3643281064 is 4601823463.

It is a super-2 number, since 2×3643281064² = 26546993822601944192, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905184 + ... + 909199.

It is an arithmetic number, because the mean of its divisors is an integer number (428648220).

Almost surely, 2^3643281064 is an apocalyptic number.

It is an amenable number.

3643281064 is a deficient number, since it is larger than the sum of its proper divisors (3215090456).

3643281064 is a wasteful number, since it uses less digits than its factorization.

3643281064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814640 (or 1814636 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 3643281064 is about 60359.5979443203. The cubic root of 3643281064 is about 1538.7363930472.

The spelling of 3643281064 in words is "three billion, six hundred forty-three million, two hundred eighty-one thousand, sixty-four".