3640021063 has 8 divisors (see below), whose sum is σ = 4170198560. Its totient is φ = 3112387200.

The previous prime is 3640021061. The next prime is 3640021067. The reversal of 3640021063 is 3601200463.

3640021063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3640021063 - 2¹ = 3640021061 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 (3640021061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632838 + ... + 638563.

It is an arithmetic number, because the mean of its divisors is an integer number (521274820).

Almost surely, 2^3640021063 is an apocalyptic number.

3640021063 is a deficient number, since it is larger than the sum of its proper divisors (530177497).

3640021063 is a wasteful number, since it uses less digits than its factorization.

3640021063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271817.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 3640021063 is about 60332.5870736537. The cubic root of 3640021063 is about 1538.2773032850.

The spelling of 3640021063 in words is "three billion, six hundred forty million, twenty-one thousand, sixty-three".