3240640453423 has 8 divisors (see below), whose sum is σ = 3266579281680. Its totient is φ = 3214734734400.

The previous prime is 3240640453409. The next prime is 3240640453429. The reversal of 3240640453423 is 3243540460423.

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 3240640453423 - 2³³ = 3232050518831 is a prime.

It is a super-3 number, since 3×3240640453423³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240640453429) 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, 8080753 + ... + 8472298.

It is an arithmetic number, because the mean of its divisors is an integer number (408322410210).

Almost surely, 2^{3240640453423} is an apocalyptic number.

3240640453423 is a deficient number, since it is larger than the sum of its proper divisors (25938828257).

3240640453423 is a wasteful number, since it uses less digits than its factorization.

3240640453423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16554617.

The product of its (nonzero) digits is 829440, while the sum is 40.

The spelling of 3240640453423 in words is "three trillion, two hundred forty billion, six hundred forty million, four hundred fifty-three thousand, four hundred twenty-three".