5640333621 has 8 divisors (see below), whose sum is σ = 8098940640. Its totient is φ = 3470974512.

The previous prime is 5640333599. The next prime is 5640333637. The reversal of 5640333621 is 1263330465.

5640333621 is digitally balanced in base 3, 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 not a de Polignac number, because 5640333621 - 2⁶ = 5640333557 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640333821) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 72311931 + ... + 72312008.

It is an arithmetic number, because the mean of its divisors is an integer number (1012367580).

Almost surely, 2^5640333621 is an apocalyptic number.

It is an amenable number.

5640333621 is a deficient number, since it is larger than the sum of its proper divisors (2458607019).

5640333621 is a wasteful number, since it uses less digits than its factorization.

5640333621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144623955.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 5640333621 is about 75102.1545696260. The cubic root of 5640333621 is about 1780.0611876665.

The spelling of 5640333621 in words is "five billion, six hundred forty million, three hundred thirty-three thousand, six hundred twenty-one".