421471266476771 has 16 divisors (see below), whose sum is σ = 494702283678720. Its totient is φ = 351495553822560.

The previous prime is 421471266476759. The next prime is 421471266476779. The reversal of 421471266476771 is 177674662174124.

It is not a de Polignac number, because 421471266476771 - 2¹⁰ = 421471266475747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421471266476698 and 421471266476707.

It is not an unprimeable number, because it can be changed into a prime (421471266476779) 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, 50535170 + ... + 58281608.

It is an arithmetic number, because the mean of its divisors is an integer number (30918892729920).

Almost surely, 2^{421471266476771} is an apocalyptic number.

421471266476771 is a deficient number, since it is larger than the sum of its proper divisors (73231017201949).

421471266476771 is a wasteful number, since it uses less digits than its factorization.

421471266476771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7956554.

The product of its digits is 132765696, while the sum is 65.

The spelling of 421471266476771 in words is "four hundred twenty-one trillion, four hundred seventy-one billion, two hundred sixty-six million, four hundred seventy-six thousand, seven hundred seventy-one".