421455985441 has 8 divisors (see below), whose sum is σ = 431419348800. Its totient is φ = 411499988592.

The previous prime is 421455985427. The next prime is 421455985471. The reversal of 421455985441 is 144589554124.

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 421455985441 - 2⁵ = 421455985409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421455985471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1725766 + ... + 1954783.

It is an arithmetic number, because the mean of its divisors is an integer number (53927418600).

Almost surely, 2^421455985441 is an apocalyptic number.

It is an amenable number.

421455985441 is a deficient number, since it is larger than the sum of its proper divisors (9963363359).

421455985441 is a wasteful number, since it uses less digits than its factorization.

421455985441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683255.

The product of its digits is 4608000, while the sum is 52.

The spelling of 421455985441 in words is "four hundred twenty-one billion, four hundred fifty-five million, nine hundred eighty-five thousand, four hundred forty-one".