432171815603 has 4 divisors (see below), whose sum is σ = 471460162488. Its totient is φ = 392883468720.

The previous prime is 432171815573. The next prime is 432171815623. The reversal of 432171815603 is 306518171234.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 432171815603 - 2¹⁸ = 432171553459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432171815623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19644173426 + ... + 19644173447.

It is an arithmetic number, because the mean of its divisors is an integer number (117865040622).

Almost surely, 2^432171815603 is an apocalyptic number.

432171815603 is a deficient number, since it is larger than the sum of its proper divisors (39288346885).

432171815603 is a wasteful number, since it uses less digits than its factorization.

432171815603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39288346884.

The product of its (nonzero) digits is 120960, while the sum is 41.

Adding to 432171815603 its reverse (306518171234), we get a palindrome (738689986837).

The spelling of 432171815603 in words is "four hundred thirty-two billion, one hundred seventy-one million, eight hundred fifteen thousand, six hundred three".