421144545353143 has 16 divisors (see below), whose sum is σ = 429982320706560. Its totient is φ = 412388492544000.

The previous prime is 421144545353131. The next prime is 421144545353149. The reversal of 421144545353143 is 341353545441124.

It is a cyclic number.

It is not a de Polignac number, because 421144545353143 - 2²⁵ = 421144511798711 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 (421144545353149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55701303 + ... + 62808631.

It is an arithmetic number, because the mean of its divisors is an integer number (26873895044160).

Almost surely, 2^{421144545353143} is an apocalyptic number.

421144545353143 is a deficient number, since it is larger than the sum of its proper divisors (8837775353417).

421144545353143 is a wasteful number, since it uses less digits than its factorization.

421144545353143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7113078.

The product of its digits is 6912000, while the sum is 49.

The spelling of 421144545353143 in words is "four hundred twenty-one trillion, one hundred forty-four billion, five hundred forty-five million, three hundred fifty-three thousand, one hundred forty-three".