405324423543 has 32 divisors (see below), whose sum is σ = 612696188160. Its totient is φ = 236279324160.

The previous prime is 405324423463. The next prime is 405324423547. The reversal of 405324423543 is 345324423504.

It is not a de Polignac number, because 405324423543 - 2³⁰ = 404250681719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405324423547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10125055 + ... + 10165007.

It is an arithmetic number, because the mean of its divisors is an integer number (19146755880).

Almost surely, 2^405324423543 is an apocalyptic number.

405324423543 is a deficient number, since it is larger than the sum of its proper divisors (207371764617).

405324423543 is a wasteful number, since it uses less digits than its factorization.

405324423543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53679.

The product of its (nonzero) digits is 691200, while the sum is 39.

Subtracting from 405324423543 its sum of digits (39), we obtain a palindrome (405324423504).

The spelling of 405324423543 in words is "four hundred five billion, three hundred twenty-four million, four hundred twenty-three thousand, five hundred forty-three".