421413040453 has 4 divisors (see below), whose sum is σ = 421425627660. Its totient is φ = 421400453248.

The previous prime is 421413040429. The next prime is 421413040463. The reversal of 421413040453 is 354040314124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21727349604 + 399685690849 = 147402^2 + 632207^2 .

It is a cyclic number.

It is not a de Polignac number, because 421413040453 - 2³³ = 412823105861 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 (421413040423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6243250 + ... + 6310387.

It is an arithmetic number, because the mean of its divisors is an integer number (105356406915).

Almost surely, 2^421413040453 is an apocalyptic number.

It is an amenable number.

421413040453 is a deficient number, since it is larger than the sum of its proper divisors (12587207).

421413040453 is a wasteful number, since it uses less digits than its factorization.

421413040453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12587206.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 421413040453 its reverse (354040314124), we get a palindrome (775453354577).

The spelling of 421413040453 in words is "four hundred twenty-one billion, four hundred thirteen million, forty thousand, four hundred fifty-three".