3645040063 has 8 divisors (see below), whose sum is σ = 4166361632. Its totient is φ = 3123868896.

The previous prime is 3645040043. The next prime is 3645040079. The reversal of 3645040063 is 3600405463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3645040063 - 2²¹ = 3642942911 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 (3645040043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20281 + ... + 87757.

It is an arithmetic number, because the mean of its divisors is an integer number (520795204).

Almost surely, 2^3645040063 is an apocalyptic number.

3645040063 is a deficient number, since it is larger than the sum of its proper divisors (521321569).

3645040063 is an equidigital number, since it uses as much as digits as its factorization.

3645040063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75201.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 3645040063 is about 60374.1671826618. The cubic root of 3645040063 is about 1538.9839904054.

The spelling of 3645040063 in words is "three billion, six hundred forty-five million, forty thousand, sixty-three".