421446270263563 has 4 divisors (see below), whose sum is σ = 431247346316248. Its totient is φ = 411645194210880.

The previous prime is 421446270263527. The next prime is 421446270263609. The reversal of 421446270263563 is 365362072644124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421446270263563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421446270263063) 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, 4900538026278 + ... + 4900538026363.

It is an arithmetic number, because the mean of its divisors is an integer number (107811836579062).

Almost surely, 2^{421446270263563} is an apocalyptic number.

421446270263563 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

421446270263563 is a deficient number, since it is larger than the sum of its proper divisors (9801076052685).

421446270263563 is an equidigital number, since it uses as much as digits as its factorization.

421446270263563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9801076052684.

The product of its (nonzero) digits is 34836480, while the sum is 55.

The spelling of 421446270263563 in words is "four hundred twenty-one trillion, four hundred forty-six billion, two hundred seventy million, two hundred sixty-three thousand, five hundred sixty-three".