3645043068 has 24 divisors (see below), whose sum is σ = 8952737920. Its totient is φ = 1151066160.

The previous prime is 3645043063. The next prime is 3645043093. The reversal of 3645043068 is 8603405463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645043063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7993288 + ... + 7993743.

Almost surely, 2^3645043068 is an apocalyptic number.

3645043068 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3645043068 is an abundant number, since it is smaller than the sum of its proper divisors (5307694852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3645043068 is a wasteful number, since it uses less digits than its factorization.

3645043068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15987057 (or 15987055 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 3645043068 is about 60374.1920691283. The cubic root of 3645043068 is about 1538.9844133221.

The spelling of 3645043068 in words is "three billion, six hundred forty-five million, forty-three thousand, sixty-eight".