420144050040521 has 16 divisors (see below), whose sum is σ = 420928099891200. Its totient is φ = 419360589211200.

The previous prime is 420144050040503. The next prime is 420144050040551. The reversal of 420144050040521 is 125040050441024.

It is a cyclic number.

It is not a de Polignac number, because 420144050040521 - 2³⁰ = 420142976298697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420144050040551) 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, 16546954736 + ... + 16546980126.

It is an arithmetic number, because the mean of its divisors is an integer number (26308006243200).

Almost surely, 2^{420144050040521} is an apocalyptic number.

It is an amenable number.

420144050040521 is a deficient number, since it is larger than the sum of its proper divisors (784049850679).

420144050040521 is a wasteful number, since it uses less digits than its factorization.

420144050040521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35800.

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 420144050040521 in words is "four hundred twenty trillion, one hundred forty-four billion, fifty million, forty thousand, five hundred twenty-one".